We are a startup looking for proof of concept of our device. www.healthmetryx.com

I would like to have a consult regarding the following circuit - https://longview.be/basic-rf-over-fiber-laser-driver.html I am attempting to integrate it into a LiFi project. Ultimately I need to use an LED as the transmitter. I understand there is a significant difference in bandwidth. The incoming RF signal frequency will be in the 2-100 Mhz range. Instead of taking the circuit apart and redesigning it, I am wondering if it is possible to allow the circuit to perform the modulation and then amplify the output. For example - If I was able to construct the board, could I do something like the following (assuming supporting circuitry were designed) - Connect a laser diode like this - https://www.lightoptics.co.uk/products/1310nm-coaxial-3mw-dfb-laser-diode-fiber-pigtail-fc-apc-connector To a photodiode like this - https://www.lightoptics.co.uk/products/1550nm-photodiode-coaxial-fiber-pigtail?pr_prod_strat=e5_desc&pr_rec_id=dda712133&pr_rec_pid=7869658857730&pr_ref_pid=7870182555906&pr_seq=uniform Then connect the photodiode to a transimpedance amplifier like this - https://www.ebay.com/itm/155797335155?itmmeta=01HVKG8FNC6EMC7QHDC2BW0RQS&hash=item24463eac73:g:LsYAAOSw6pRlEvLw&itmprp=enc%3AAQAJAAAA0G7waUPGWl36fMiTU8xff9f09lO1rmx8hWpaRpi%2FYWOuz5AQMr0VAiF7f%2FcoeBbWiUROzJx1F%2BRB17mFrPo5x1lqWBUO%2BLZoVRlglNf5i1ev3CIvf6YF5WeXfmQYrUyy6AzWgPSxZzUwjv4x5rVXDBhGcUqvPA9ffGzLpDUqiJ%2B66Ggw69kBpyRqBAFbM0CpkzdqY5BnmGq2VyVc%2BcWFjbPl4Y7aXotYCc21Kwx52q1JmVLJqsf4n7aKkl6OwAqyW8I1kDWQNUh0u3mP2SPcwvM%3D%7Ctkp%3ABk9SR-D6ofDcYw If that is usable, could the output from the amplifier be combined with a power supply to modulate an LED to use as a LiFi transmitter? What size/power LED's could I support? I am also open to alternatives. This is what our call will focus on if you would like to participate.

I'd like to design a small PCB that has the same form factor (note the PCB is 0.6mm thin for a total package height of 1.9mm) as the Tomu and has similar functionality, but i'd like it to be Arduino based. I'm thinking a processor like ATSAMD21. https://www.crowdsupply.com/sutajio-kosagi/tomu/ Find all of the schematics and project files on the Github. https://github.com/im-tomu I also want to have physical tactile buttons instead of the touch sensitive button. I think 2 or 3 side buttons would sit nicely on the edge of the PCB to easily press. (LS12T2-T) For the boot/reset button i'd like pads instead of a button. Its important that its as small as possible. Preferably just the buttons will sit outside of the USB port. I'd also like a copy of the project files. I'd like to be able to open these files in a free software like Kicad. Thank you!

We are seeking an experienced Arduino programmer to fix and finalize the code for our custom PCB. The code has been partially developed but requires debugging, optimization, and integration of additional features. This code is for a custom PCB built with ESP32 Wifi/Bluetooth capabilities a rotary dial, an OLED screen, and an on/off switch. We are seeking someone that can help finalize code for a basic metronome with multiple sub menus where volume, tempo (40-250 bpm), beat (3/4, 4/4, etc), and rhythm (quarter note, half note, etc) can be adjusted. Look to also be able to link it to airpods via the bluetooth module. (The successful candidate will have a strong understanding of Arduino programming and be able to troubleshoot and modify existing code. They should also be familiar with PCB design and have knowledge of electrical circuits. The project will involve reviewing the existing code, identifying and resolving errors, optimizing performance, and adding new functionality. The ability to work independently and meet deadlines is essential. Skills required: - Arduino programming - Debugging and troubleshooting - PCB design - Basic understanding of Music - Knowledge of electrical circuits - Problem-solving

Please find the attached file, with the information needed.

I am currently seeking an experienced firmware developer with knowledge in Micropython, LoRaWAN, and STM32F411 MCU to set up a LoRaWAN driver/protocol on my custom microcontroller board. Here's what you need to know: - The board uses Hope RFM95 radio using the SX1276 chip. - The board is prepped for EU and TTN usage. - A gateway is readily available for setup. The LoRaWAN driver must be able to send and receive data with small-sized packets of less than 50 bytes. Ideal Skills: - Experience developing firmware with STM32f411 MCU. - Knowledge of LoRaWAN and TTN. - Proficiency in Micropython. Please, apply only to this job if you can provide the service required.

Acme Revival is seeking a circuit (PCB) board technician to join our team remotely and perform electronic repairs at his/her own location, on their schedule, utilizing their own equipment. Acme Revival will send freelancer physical circuit boards and other components directly to their location via courier UPS Overnight, with expectation of diagnosis, repair, etc... within 72 hours. Freelancers generally start at around 15 hours per week. Freelancer will be required to test, troubleshoot and repair electronic, electro-mechanical and/or mechanical devices to component or sub-assembly level. Further, freelancer should be able to use critical problem solving skills to disassemble machines, and use best-judgement practices to determine "next-steps". Job Purpose: Test, troubleshoot and repair electronic, electro-mechanical and/or mechanical devices to component or sub-assembly level. Nature of Duties: Troubleshoot circuit boards to the component level without board schematics Use systems and test fixtures to determine PCBA and assembly functionality Ability to use standard measurement and test equipments such as: digital voltmeters, oscilloscopes, power supplies, and power sources Troubleshoot, repair, calibration, and testing of electronic assemblies, instruments and mechanical assemblies at the lower or component level Complete rework on assemblies (component level) and/or systems as a result of testing Ability to utilize soldering to re-work board as a result of testing

Are you an Electrical Engineering and Firmware genius with a passion for mobile robotics? We're on the hunt for an exceptional talent to join us in revolutionizing the industrial energy sector with a groundbreaking product. Your playground will include: PCB Design Mastery: From scratch to finish, crafting the heart of electronics. Specialized Sensors & Systems: Working with thermal cameras (FLIR experience a bonus), low light cameras, and ensuring precise navigation with GPS, IMU, and Gyroscope. Compact Power Management: Expertise in managing power for lipo battery systems within tight spaces. Brushless Motors: Hands-on experience in integrating these powerhouses is a must. Procurement to Integration: Beyond design, you'll oversee the journey of PCBs from procurement to embedding them within challenging chassis constraints, ready to troubleshoot and iterate as needed. Desirable Superpowers: ROS-2 and SDKs Proficiency: Experience in robotics navigation, control, or drone software development will set you apart. Commitment: Ready to dive in for an intense and rewarding 30-60 day sprint, with a focus on tangible results. Big bonus if you can be in person in Los Angeles. If you’re eager to push boundaries in robotics and have the skills listed above, we can’t wait to meet you. Join us in making an indelible mark on the industrial energy world!

Looking for an experienced electronics engineer with prior experience working on (100+ kW) Large Power Supplies. The project revolves around fixing an electronic board and reverse engineering it. -Large Power Supplies 100kW+ -Electronics Engineer

Able to Develop 3 hardware device with Raspberry Pi - It will be able to connect to local network using Bluetooth/WiFi/Zigbee - It will be able to able to integrate the relay system to enable HVAC unit's operation - It will be able to operate the relay system based on program running in the pi and based on information coming through local network -It will be able to integrate various temperature sensors - It will be able integrate humidity sensor -It will be able to process information inside and display it in the display - It will be able to integrate a display - It will be able to take human input to change values - It will be able to Process information -It will be able to integrate pressure sensor -It will be able to integrate a stepper motor