Open Cart Payment System (PayPal)

It is necessary to refine the existing Bitclock rev3 PCB in KiCad. Project sources: https://github.com/goat-hill/bitclock/tree/master/bitclock-pcb/rev3a/kicad Task: 1. Change the size and shape of the board to fit the new STEP/3D model of the case. 2. Move/replace the current power connector with USB-C. 3. Redesign the monitor connection port to an 8-pin connector. 4. Arrange components so that the board fits correctly into the case according to the mounting points. 5. Preserve the existing functionality of the board. 6. Check the alignment of the board with the 3D/STEP model. 7. The output should include ready KiCad files + updated 3D model/fit check. Main requirement: a specialist in KiCad/PCB design is needed, who can work with STEP cases and mounting points.

For a Wi-Fi device. Looking for a specialist with Tuya IoT Platform / Tuya Panel Studio experience, working with CBU is a must! Tasks to be completed: Account registration 1. Product configuration in Tuya IoT Platform 2. Data Points (DP) configuration 3. Interface development in Tuya 4. CBU ↔ Tuya interaction setup Development of hardware, PCB, etc. is not required! This task is exclusively for a specialist who has experience with the platform and can show their completed projects. All conditions will be detailed in personal correspondence, payment through escrow!

Need an AI Automation Engineer, a specialist for creating a system for active client search and smart outreach (not a regular chatbot-autoresponder) for a B2B project Data collection: automatic parsing of contacts from "blind" databases by name. Smart mailing: integration of Claude/OpenAI for analyzing client websites and generating hyper-personalized emails. Touchpoint funnels: setting up secure multi-step sequences (Follow-up) in LinkedIn and Email with protection against bans - (???) CRM integration: dynamic transfer and tagging of leads in CRM. Work format: phased payment for each successfully implemented module.

We are looking for a project - electronics engineer / Embedded Developer. Needed - to develop an electronic circuit; Program several microcontrollers C/C++ / Embedded development of the logic for the operation and connection of the hardware computing unit and sensors testing and debugging of electronic devices and their integration into the testing environment Experience in UAV/UGV, robotics, or defense-tech will be an advantage. Preferably in Kyiv to provide access to hardware.

It is necessary to investigate the electronic block "pulse current generator." Required measurements: pulse frequency, signal shape, pulse duration, duty cycle, output voltage to the coil, current through the coil, power consumption, resistance/inductance of the coil, heating during operation. The device is powered by 220 V. A specialist with an oscilloscope, current probe, differential/isolated probe, and LCR meter is needed. A short written report with photos of the oscillograms is required.