Solar light circuit board jobs

I am looking for a graphic designer with experience in menu board design. I have a website with a menu that I want to be turned into a print-ready menu board. Key Requirements: - Design Style: As per the menu on our website - Content: Do not include all items. I will provide a list of selected items to be included. - Images: I do not have high-resolution images. Ideal Skills and Experience: - Proficiency in menu board design - Understanding of print-ready formats - Ability to work with minimal direction - Creative and skilled in working with pre-existing design styles Please include samples of your previous menu board designs in your proposal. *Classic Churros* *With dip* Nutella Chocolate Custard *Churro Sundae* With ice cream and ...

I'm looking for a design similar to the one I've provided for reference at vollta.ru. - Color Scheme: The logo should be in light/gray color, in line with the overall theme of the website. Additional Information: - Sketch: Before finalizing the logo, I'd like to see a sketch of your ideas. A 2D sketch will suffice for this purpose. - Impact: The logo should convey a sense of being innovative and modern. Ideal skills and experience: - Proven experience in creating modern and innovative logo designs. - Proficiency in 2D and 3D design tools. - Strong understanding of minimalistic design principles. - Excellent communication skills and ability to take feedback on board. The logo must be in high resolution, for example, 2560x2560 pixels. It should be submitted as...

I am looking for a skilled advertising professional/media buyerwho can help me achieve an increase in sales targeted mainly towards young adults through the use of digital platforms. The ideal candidate has: - A natural talent in creating appealing and influential ads that pique the interest of the younger generation. - A proven track record in driving sales through digital advertising. - An e...of how young adults behave online to generate leads effectively. - knowledge in e-commerce ads, campaigs, marketing, copywrtiting, seo. By carefully crafting online advertisements that resonate with young adults, I hope to create a potent boost in my sales figures. Thus, if you have a knack for capturing the young demographic and converting that into tangible sales, I'd love to have you o...

I'm looking for an experienced electrical engineer to design a power distribution board for commercial use. Requirements: - The board needs to support a voltage range of 30-100V. - It should have some DC-DC reduction circuits, preferable redundant- file will be provided. example- DC-DC Converter to 5V, stabilized, with 10-15 Amps max- cooling, casing, etc. Size should not go over 10x10cm. Ideal Skills: - Electrical Engineering - Power Distribution Design - Commercial Electrical Systems Experience we will expect you to deliver specifications, drawings and source to make it done.

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Description: In a dark room with the lights turned off, two eyes appear - this is a cat. The cat then reaches his paw towards the light switch and turns on the light. After this, the cat waves its paw or makes another friendly gesture. Duration: 10-20 seconds Final result should be an .mp4 file at 1280x720 resolution.

I am looking for an exceptional freelancer to craft my company's identity by designing a logo. Here are the specific requirements. Colors: - Use the specified colors #A5F0FA (light blue) and #A9FF8F (light green). Style: - The logo must carry a yoke horizon theme. This means it should not just be visually appealing but also carry depth and meaning. Elements: - Leverage geometric shapes and typography. However, you're free to incorporate other elements, as long as they add meaning to the design. Skills/Experience: - A background in logo design with a knack for embedding meaning into visuals. Creative freedom is encouraged, as long as the logo remains aligned with the aforementioned guidelines. Looking forward to your impressive creations!

I'm looking for a product photo editor specialized in lamps or light fixtures. The main tasks will include background removal, shadow and reflection enhancement, and minor adjustments like rectifying defects from the prototypes. Key Responsibilities: - Background removal, ensuring clean and professional product images - Shadows and reflections enhancement, to create a realistic look - Minor adjustments, to rectify defects from the prototypes This will be an ongoing project with 3 prototypes to present. There is about 70 photos for those 3 prototypes, and I also need help to chose the best one for my shopify. Communication will be streamlined through cloud storage services such as Dropbox or Google Drive. Ideal Skills and Experience: - Proficiency in photo editing softwar...

I am seeking a skilled pro...professional to design and build a circuit that can sense current in DC mode, specifically for an electromagnet. This circuit will need to give a respective signal to stop or run the electromagnet, or another similar device like a hooter. Key Requirements: - The circuit should be able to sense currents of up to 150 amps. - The output signal should be of the NO NC type relay. Skills/Experience Required: - Proficiency in circuit design, particularly for current sensing applications. - Understanding of electromagnet operation would be highly beneficial. - Experience with relay-based output signal design. Please include any relevant experience you have in designing such circuits, and how you would approach ensuring the functionality ...

I require a skilled photographer to conduct an outdoor photoshoot for a group of three individuals. The aim is to capture casual, naturally lit headshots and group photos that evoke a relaxed atmosphere. Ideal Skills and Experience: - Proven experience in outdoor photograph...photography - Expertise in group photography - Ability to convey casual mood through photography - Proficiency in photographic post-production Key Features: - Location: Outdoor - Mood: Casual - Number of Subjects: Three or more Please include samples of your past work in your quotes, particularly where you've captured the 'casual' mood with an outdoor setting. Your ability to harmonize natural light with a larger group while capturing the essence of each individual will be a key decidin...

I need a detailed quantity survey conducted for a small project involving light steel frames. The primary aim of this survey is to plan the construction materials and estimate project costs. Key tasks include: - Providing quantities of materials required for walls in a 49sqm area - Creating a detailed 2D design associated with the light steel frame The ideal candidate should have prior experience conducting similar quantity surveys, specifically within the realm of light steel frame projects. It's important that they can deliver this project in a timely manner, as I need the work to be completed within a month.

I need an experienced graphics designer who can swiftly create an engaging and motivating Vision Board for me by this evening. The vision board will primarily serve as a personal tool for motivation. Key Requirements: - Expertise in illustrative drawings - Ability to incorporate images that align with the specified theme - Quick turnaround time as this project has to be completed by this evening This project offers an opportunity to express creativity while making impact. Be ready to work with me closely to ensure that the vision board truly reflects the motivating spirit I aim to capture.

...lighting system created. This system should incorporate: - LED lights (e.g., low-intensity for outdoor usage) - A battery that should power these lights uninterruptedly (small in size: not a car battery) - Both solar panels and a wind turbine to recharge the battery (both power sources would be a part of this system, and can automatically recharge the battery at any time based on whether solar or wind is available) - A way to monitor the level of charge within the battery at any given time Conditions for Charging: The battery should get recharged when there is an availability of wind or solar power. Skills and Experience Required: - Extensive knowledge about renewable energy systems - Experience in designing electrical diagrams - Proficient in software for elect...

I need a seasoned designer who can envision a modern, bright, and motivating design for my large office space of over 1000 sq ft. This person should have: - Experience with modern aesthetics in space planning and design. - Proven tr...office space of over 1000 sq ft. This person should have: - Experience with modern aesthetics in space planning and design. - Proven track record in designing large office spaces. Key Requirements: 1. Must-have Features: The design should incorporate both collaborative workspaces and private offices, with an emphasis on functionality and comfort. By taking this project, you should produce a mood board, concept sketches, and detailed 3D renderings. Please include links to your portfolio in your bidding proposals - especially those with large, moder...

I'm seeking a talented designer for an education book aimed at Condominium Owners and board members. - Genre: Education - No specific concept in mind, so your creative input is valued - Target audience: Condominium Owners and board members Ideal Skills and Experience: - Extensive experience in book cover design - Ability to work with minimal direction and bring creative ideas to the table - Understanding of the target audience, Condominium Owners and board members, possibly with prior experience in this field. Title: Understanding Condominium Safety and Security in Canada Subtitle: A comprehensive guide for condo managers and resident to keep their property and residents safe Author: Scott Hill, CPP, RCM, PSP

I'm searching for a skilled Adobe After Effects expert to fix a complex expression to a layer for a Split Flap Display Board Project. The complexity lies in the requirement to display custom text and there is currently only one error in the expression that we need fixing for the animation to work. Here's what would make you a good fit: - Proven experience with After Effects expression code - Familiar with the dynamics of a split flap display board - Demonstrated ability to deliver precise and efficient coding solutions - Exceptional attention to detail Turn our After Effects project file into an interactive masterpiece that will make custom text look more appealing and engaging.

...Jimmy Jean-Louis Embracing Grace. Your Free Gift. Living in Grace: Your Blueprint to Embracing God's Free Gift Book size: 8.5 x 0.28 x 11 inches Book Summary: Key Points: - Genre: Religious - Theme: Powerful - Imagery: Cross, Dove, Light beams The cover should communicate the strength and importance of the content, mirroring the theme of power. The symbolism of the cross, dove, and light beams should be incorporated artistically and meaningfully. I'm looking for a compelling design that will draw readers in and resonate with those seeking spiritual or faith-based content. Ideal Skills: - Proficiency in graphic design, particularly book cover design - Understanding of religious symbolism and imagery -

...184a2c705c3a Acceptance Criteria: - Transloco works - all strings have been added to json translation files - spanish and english translations are added - Translations can dynamically change - A setting for changing the language is added - modulized approach Adding Dark Mode: Acceptance Criteria: - Can switch between dark and light mode - have the two main colors of angular material theme defined in a way to be reusable in all components ( changing it in one place will update it in all components) Adding Touch & Arrow Support for the Grid pages consisting of cards: Acceptance Criteria: - Album Card grid can be scrolled with touch gestures - Touch gestures to

I'm seeking a skilled UI/UX developer to revamp my Android mobile app. The redesign will cover all aspects of the app including its layout, navigation, color scheme, branding, and overall user experience. I'm envisioning a minimalist and clean style for the app. Details of the revamp include: - Developing a new color scheme...the overall user experience to make it more intuitive and user-friendly Ideal candidates will have substantial experience in UI/UX design, specifically for Android apps, and have a solid grasp of Android Material Guidelines and Design principles. I'm open to creative suggestions to give my app a totally fresh makeover. I'm expecting the following deliverables: - Design for the app on figma. Light and dark themes - Logo(s) - 3-5 images t...

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I'm seeking a professional to create an insulation drawing for my Medical device that is currently at the production stage. Key requirements: - Create an insulation drawing for a simple circuit with DC power source, in accordance with IEC 60601 standard - Device has 1 DC motor, 2 9V batteries, 1 Resistor, 1 Limit switch, 1 Push activation button and 1 LED. - Experience in designing insulation for medical devices is a must - Understanding of safety requirements and regulations for medical device insulation Please note that as my machine is at the production stage, the deliverable should be ready for immediate implementation into the manufacturing process. Skills and Experience: - Proficiency with insulation drawing for medical devices - Strong knowledge of IEC 60601 stand...

In simple words: - A website platform for users where you can create a group and you manage its users. Then you can send messages via the website, WhatsApp, Telegram or emails to the group members. These messages would be images or text from a certain agreed religious book (Quran or others) which are pre-scheduled - like a reading circuit. - The website would be in Arabic (mainly) and English. - Time frame is 4-6 weeks. - User attractive. - It would be an islamic website. - Potential for it to be a web app Whatsapp integration is a cornerstone in this project. Further details to be discussed.

I'm seeking a content writer with a deep understanding of Russian history, specifically the Soviet era. The main focus of this project is to conduct an in-depth research on the political...the political climate during that time. Key Requirements: - Expertise in Russian History: Profound knowledge of the Soviet era is crucial for this project. - Research Skills: Ability to gather and analyze historical data accurately and efficiently. - Writing Skills: Proficient in creating engaging and informative content. The end deliverable will be a comprehensive research piece that sheds light on the political dynamics of the Soviet era. This research will be utilized as content for a radio program. If you have the necessary expertise and are passionate about Soviet history, I'd li...

The goal of this project is to create a 2D/3D logo in /light/gray color. It should also include the colors of the German flag. The sketch must be ORIGINAL! I'm tired of Google images. The logo must be in high resolution, for example, 2560x2560 pixels. It should be submitted as a Photoshop PSD file. and also make it in the size as on the website Product topic: electrical engineering products for smart home our website: Color scheme of the future website example: An example of a logo I like: Most products are from Germany; the logo should reflect the colors of the German flag.

I'm in need of a PowerPoint expert to create a High Level Design presentation. This is an important task, as the presentation will be delivered to high level management, including the CEO and board members. Key Responsibilities: - Develop a comprehensive High Level Design (HLD) presentation - Ensure the content is professionally delivered - Utilize visual representations like charts and graphs The ideal candidate should have: - Extensive experience in creating professional PowerPoint presentations - A keen eye for design and detail - Experience in presenting complex concepts in a clear and engaging way - Proficiency in creating visual representations using charts and graphs The design style should be corporate and professional, in line with the audience it will be presented ...

...vector files as well! PLEASE READ: I had a previouse logo for a car detailing business and now we are shifting to commercial cleaning. We do window cleaning and other servcies now. I need someone to recreate the logo and put "cleaning" where "detailing" is. Remove detailing and put cleaning. I attched the old logo to show how it looks. Please change the red in the "s" to a blue (torquoise, bright/light blue, summer kind of color). I will need the vector files as well. If you want to create something new, you can do that as well....

I'm seeking a skilled freelancer to help me find buyers for my pyrolysis oil in Vietnam. The oil is top quality, with high calorific value, low sulfur content, and specially optimized for use in industrial boilers. Key Responsibilities: - Identify and approach potential industrial and commercial buyers in Vietnam. - Promote the benef...record of successful negotiations and deal closures. - Ability to effectively communicate the technical specifications and benefits of the product to potential buyers. - Fluency in Vietnamese and English is a plus. Your goal will be to not only find buyers, but to maintain a consistent and strong customer base. This is a commission based project, and I'm confident that with the right person on board, we can establish a solid presence in th...

I need a UI designer to create a Figma structure for both a website and an app. Key Requirements: - Light color scheme: I prefer a color scheme that includes white and pastel colors - Platforms: The app should be for Both iOS and Android - Urgency: I need this project completed ASAP. Ideal Candidate: - Proficient in Figma - Experience designing UI for both websites and mobile apps - Strong understanding of color usage and schemes - Capable of quick turnaround without compromising quality. Your role will be to design an intuitive and visually appealing interface for an event ticket booking service. I look forward to seeing your portfolio and understanding how you can bring my vision to life.

...illustrations for photos will be advantageous. - You should have an understanding of and an ability to work with artistic elements related to photos. An eye for aesthetics that will enhance the look of our photos is crucial. Looking forward to working with talented individuals who can reimagine the beauty of our photos through their artistic prowess. It's time the world saw our photos in a new light! Need musuem still looking frames around photos. Measurements: (2) WALL STICKERS: 79" tall x 48" Wide Need brick wall sticker. Would love the brick have blue, white as seen in the file attached as reference. no picture on brick wall, just plan brick wall. Measurement: (1) Wall sticker 96" x 51" wide If interested, will share photos via dropbox. The Wall ...

I'm in need of a proactive and results-driven professional to assist in setting appointments with homeowners who are interested in solar panels, batteries, and roofing as alternative energy options. Key Responsibilities: - Conducting follow-up calls on leads provided by our marketing team - Setting 6-10 appointments per week with interested homeowners - Ensuring that each appointment is confirmed and scheduled efficiently This position requires: -Bilingual (Spanish & English) - Strong communication skills to engage with potential customers - Previous experience in appointment setting is a plus - Knowledge or interest in alternative energy options such as solar panels, batteries, and roofing - Ability to understand and convey the unique selling points of our product...

Minimalistic grey Icons for businesses 1. Just the logo 2. Word Logo Brands: Google, Facebook, Yelp, Trust Pilot, G2, Trip Advisor, Better Business Bureau, Angi, Foursquare Key Requirements: - Design a collection of business icons using a minimalist style - Utilize light grey color scheme - Deliver the icons in SVG format Attached is an example of just logo, and word logo. For all the brands please provide 1 of each

I'm in need of a website that can cater to business professionals. The site needs to be designed using html, css, and JS. I won't provide you an inspo here on this page, but I need you to have familiarity working with html syntax, css grids and JS. I will provide you the idea board, the copy, and you will only focus on actively designing the website. Navbar, sidebar, interactivity and so on. I am an open minded individual and familiar with dev tools. Please provide me with a piece of your portfolio. The one YOU like the most. Not the one you think I would like the most.

I'm looking for structural engineering professionals to design exterior ceilings and soffits for a 12-story St. Regis Resort. They must be experienced in creating designs that meet Miami Dade hurricane codes. Key Requirements: - Waterproof - Fire-resistant - Aesthetically pleasing - Designs need to incorporate steel and light gauge metal framing components I've already secured permits and approvals necessary for this project. The design must strictly meet all local authority guidelines. Prior experience in this area is strongly preferred.

We are searching for an experienced tire designer who can follow our directions to produce initial flat CAD drawings of tread and sidewall designs followed by final 3D modeling. We need to create new designs in all consumer categories, light truck, 4x4 Off-Road vehicles, PCR and ATV/UTV. The final mold drawings and engineering will be done by the factory. Ideal Freelancer: - Proven experience in tire design - Understanding of the factors that contribute to tire performance and durability - Proficiency in CAD software for tire design - Please provide your portfolio

...compensation for your efforts. How to Apply: Please submit your portfolio showcasing previous work in content design and creative writing, especially any work relevant to e-commerce or corporate campaigns. Include a brief cover letter explaining why you are a good fit for this position and how your skills align with the job requirements. Looking forward to your creative proposals and having you on board!...

As a dedicated entrepreneur, I am excited to bring my ideas to life th...Making some edits to an already-built Bubble app. And edit some of teh existing UI/UX issues. - User Authentication mechanism: It's vital to ensure only registered users access the application. - Audit the app for security vulnerabilities and fix them. Key outputs: - A web application with user authentication. - Custom API workflows to streamline processes. We have a designer and SEO expert on board but are open to creative feedback to generate a visually appealing and user-friendly web application. An affinity for detail-oriented and creative design would be a significant plus. Just so you know, this could be a long-term engagement since it would need ongoing support. You have to be Bubble certifie...

I require an adept electrician to address persistent electrical issues in my living room. Specifically, I am experiencing an annoying issue of frequent circuit breaker trips. The services I require encompass electrical troubleshooting and possible rewiring of the affected areas. Ideal skills and experience: - Proficiency in identifying and fixing electrical faults - Extensive experience in electrical troubleshooting - Ability to safely and efficiently rewire electrical systems if necessary - Familiarity with circuit breakers and ways to prevent their frequent tripping Understanding of local electrical codes will be a plus. Please detail your experience in your proposal.

We are in need of a freelance California certified solar designer to review and certify our solar system design. The project is a 280 kW Rooftop PV System for an estate in Southern California. Our Helioscope model, single line diagrams, layout and cabling schematics are all ready for review. Your expertise will be crucial in ensuring the accuracy and compliance of our design. The ideal candidate will have extensive knowledge and experience in solar system design, as well as the ability to conduct thorough peer reviews. Attention to detail and adherence to local regulations are paramount.

I'm looking for a talented UI designer to enhance the Login and Create Profile screens of my mobile app. The app is primarily used by business professionals, so the design needs to be clean, minimalistic and visually appealing. These are the two starting screens. If things go well, I will proceed with 10 more screens Current Designs: Key Requirements: - New Designs in Figma - Improve the usability of the Login and Create Profile screens: The current design is basic and lacks the sophistication and intuitiveness needed for a business app. - Modern and sleek design: The new UI should incorporate modern design principles, with a sleek and professional look that will appeal

For THREE websites. We need to be in TOP ranking, first page for GOOGLE Singapore for 3 WEBSITES. Website 1 (Linen Manufacturer) - Off site Links (300 per month) - 30 keywords; Website 2 (Solar Equipment) - Off site Links (300 per month) - 11 keywords; Website 3 (Steel Factory) - Off site Links (200 per month) - 15 keywords; Requirements - - Minimum 6 UNIQUE articles for each website. - Website analysis & On Page SEO - On Page SEO Report + Weekly & Keyword Ranking reports - Breakdown of cost (Hidden cost will be reported) - Must achieve top ranking (within first page) only whitehat SEO techniques. BUDGET FOR ALL WEBSITES: SGD$40 to SGD$50 MAX. DON'T OVERBID, please. PLEASE NOTE: USE SINGAPORE DOLLAR.

I'm looking for a skilled developer to update our Android platform APK for NFC access control on a custom-made board. Now we need to make it Cross platform and utilize the NFC CARD EMULATION system on the mobile device The Application is already developed and i have the source codes so i would like to work on it and not created from the scratch. The android version is located in the Andorid Store under the name of "PELEKIS NFC access control" Key Requirements: - The APK should be compatible with both Android and iOS platforms. - The main purpose of this APK is to facilitate NFC access control on a custom board, made specifically for this purpose. - The specific functionality required for this project is read/write capabilities. Ideal Skills: - Proficiency...

'Alvo' means 'Target' in Portuguese. Business overview: Alvo is an expert sales prospecting services. We connect our customers with the right prospects, helping them to grow their pipeline and close deals faster. What We Do: Identify Ideal Prospects: Our team uses advanced data analytics to pinpoint the perfect leads for your business. Engage Effectively: We craft personalised outreach emai...Identify Ideal Prospects: Our team uses advanced data analytics to pinpoint the perfect leads for your business. Engage Effectively: We craft personalised outreach email campaigns that resonate with your target audience. Logo colours: Please look at logos with orange, white and maybe green. Logo feeling: clean, modern, technology and if possible a design that makes you think of ...

As an ecommerce busin...and unique characteristics. The new design should attract and engage users, encouraging conversions. - User Experience: I'm looking to optimize user navigation and usability, ensuring a seamless shopping journey from landing page to checkout. Ideas for improving the overall user experience are welcome. - SEO Optimization: The site's visibility on search engines is essential for our success. In light of that, the chosen candidate will need to implement SEO best practices throughout the site. The ideal professional for this job will have substantial Wix experience, particularly in ecommerce sites, and a proven track record in UI/UX and SEO optimization. Demonstrable ability to translate business needs and product features into captivating design w...

I'm in need of an intermediate SAP PS Consultant who can assist in training purposes. My goal is to bring someone on board who can guide my team in understanding and utilizing SAP Project Systems effectively. This will involve explaining complex concepts in a way that is easy for beginners to understand, while still providing the depth of information required for them to become proficient. Ideal candidates should have a solid grasp of SAP PS and a proven ability to teach or train others, while understanding the specific needs of a beginner or intermediate learner. It's crucial that they are able to deliver this guidance efficiently and effectively within a short period of time, as the project is expected to last less than a month. If you're someone with the righ...

...Motivational Quotes: The app will feature a collection of motivational quotes to inspire and uplift users. - Progress Charts: Visual representation of their progress in the form of charts or graphs. Additional Features: - Alcohol Test Device Connection: Ability to connect with an alcohol test device through Bluetooth for added accountability. - Alcohol test result history management - Competition Rank Board: A competitive element where users can see how they rank against others in their sobriety journey. We need to refer to and we add some community function in the app. Ideal Skills: - Proficient in app development for both iOS and Android platforms - Experience in creating social networking or motivational apps - Ability to integrate Bluetooth functionality - Strong UI/UX d...

...power consumption low. Bluetooth should automatically connect to the phone. PCB should power on when movement is detected and remain on for a period of time, set within the app. A tilt/vibration sensor detects when the PCB moves and turns on the power. Key features of the Bluetooth device must include: - Alarm sound feature - press button on phone to sound a loud alarm on PCB - Flashing light feature - light flashes when alarm sounds - Show on-map location - Rechargeable battery capability - Battery charge status either within app or on PCB i.e. flash red LED on PCB when charge low Nice to Have - Show distance to PCB based on signal strength The app should be: - Compatible with both iOS and Android devices. Bluetooth Connection: - The desired Bluetooth range is less t...

...compensation for your efforts. How to Apply: Please submit your portfolio showcasing previous work in content design and creative writing, especially any work relevant to e-commerce or corporate campaigns. Include a brief cover letter explaining why you are a good fit for this position and how your skills align with the job requirements. Looking forward to your creative proposals and having you on board!...

We are an existing solar project enterprise in need of an ERP solution. We're particularly interested in effective implementation of the Sales, Purchase, Project, and Inventory modules in the Odoo community ERP. Our focus for the Sales module is predominantly towards Quotations and Sales orders. The ideal freelancer for this should hold significant experience in configuring Odoo, especially within the sales, purchase, Project and inventory modules and possess a solid understanding of its functionalities. This familiarity will be beneficial in accurately translating our business needs into the system.

I'm looking for a skilled Arduino developer to help me create a fault detection system for AC supply. The system should be able to identify possible faults including short circuit, open circuit, phase loss and other related issues. Key components: - I've decided to use an ESP32 board instead of the conventional Arduino boards for this project. - The current sensor I'd like to implement includes ZMPT101B and ACS712. - The voltage sensor I'd prefer to use are the ZMPT101B and ACS712. Your tasks would include: - Writing the code required for the ESP32 board to interface with the current and voltage sensors. - Creating the fault detection algorithms in the code. Ideal skills and experience: - Proficiency with Arduino and ESP32 development. - ...

work description: 1. Build truss frame and hang logo curtain, 2. Assist in connecting electrical equipment and commissioning operation, 3. Help the sample LED fixtures to light up and work normally, 4. Help fill the balloons with helium and ensure that the balloons fly normally.