Project 43:
ESP32-C3 Inside USB v1.0

ESP32-C3: Schematic, Board Layout, PCB Top, Pinout Diagram

v1.0 Bill of Materials     

Short Video of v1.0

(Click to enlarge)

Overview:

An ESP32-C3 microcontroller uses WiFi to pulldown the current time, accurate to within one second.

A BME280 provides Tc, Hu, and BP to a 4-bit 7-segment "tube" display. There is also code commented out if you choose to run the much cheaper AHT10 sensor.

The PCB uses a male USB connector to attach itself to a USB "cube" with a vertical receptacle.

Components:

ESP32-C3 Dev Board, AliExpress_4-digit_7-segment_LED_Module, https://github.com/sidharthmohannair/Tutorial-ESP32-C3-Super-Mini/.

ESP32-C3 Arduino Code:  v1.0\Code\_ESP32-C3_USB_Inside.ino

Testing During Assembly:

Insert only the BME280 sensor and run the Adafruit test file bme280test.ino

If you're using the AHT10 instead, run the Adafruit test file adafruit_aht10_test.ino

If either tests well then you can run the full program listed above this section.