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Each card is a unique project demonstrating a specific concept or technology.\n\n![WLED Matrix](WLED_Matrix/DSC05843.JPG)\n\n## USB Cable Tester MK2\n\n![PCB Render](\u003cUSB_Cable_Tester_MK2/USB Cable Tester.jpg\u003e)\n![PCB in Real Life](\u003cUSB_Cable_Tester_MK2/DSC05968.JPG\u003e)\n\n* Simple, battery-powered USB 2.0 and 3.0 cable tester\n* Protected by Schottky diodes and a polyfuse\n* Indicates test results with LEDs\n\n[Project Page](https://github.com/CDFER/Business-Cards/tree/main/USB_Cable_Tester_MK2)\n\n## Tea Cozy Hotplate\n\n![PCB Render](\u003cTea_Cozy_Hotplate/Tea Cozy Hotplate.jpg\u003e)\n![PCB in Real Life](\u003cTea_Cozy_Hotplate/DSC05820.JPG\u003e)\n\n* Temperature-controlled hotplate for perfect tea temperature\n* Compact design, precise temperature control, and user-friendly interface\n\n[Project Page](https://github.com/CDFER/Business-Cards/tree/main/Tea_Cozy_Hotplate)\n\n## USB MicroPad\n\n![PCB Render](\u003cUSB_Keypad/USB Keypad.jpg\u003e)\n![PCB in Real Life](\u003cUSB_Keypad/DSC05812.JPG\u003e)\n\n* 8-button macro pad for productivity shortcuts and macros\n* Implemented as a USB HID keyboard and HID media consumer controller\n\n[Project Page](https://github.com/CDFER/Business-Cards/tree/main/USB_Keypad)\n\n## WLED Matrix\n\n![PCB Render](\u003cWLED_Matrix/WLED Matrix.jpg\u003e)\n![PCB in Real Life](\u003cWLED_Matrix/DSC05802.JPG\u003e)\n\n* 7x9 RGB matrix display powered by an ESP32C3 microcontroller\n* Controlled from any web browser using WLED firmware\n\n[Project Page](https://github.com/CDFER/Business-Cards/tree/main/WLED_Matrix)\n\n## USB Cable Tester MK1\n\n![PCB Render](\u003cUSB_Cable_Tester/USB Cable Tester.jpg\u003e)\n![PCB in Real Life](\u003cUSB_Cable_Tester/DSC05738.JPG\u003e)\n\n* Simple, battery-powered USB 2.0 and 3.0 cable tester\n* Protected by Schottky diodes and a polyfuse\n* Indicates test results with 0603 green LEDs\n\n[Project Page](https://github.com/CDFER/Business-Cards/tree/main/USB_Cable_Tester)\n\n### Support\n\nSupport my work by purchasing a custom CO2 sensor on my website or hiring me for freelance Embedded Electronics projects: [https://www.keastudios.co.nz](https://www.keastudios.co.nz/about.htm).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcdfer%2Fbusiness-cards","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcdfer%2Fbusiness-cards","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcdfer%2Fbusiness-cards/lists"}