Minimal-XX Board

Short description: Makes I2C, SPI, UART and 1-Wire readily accessible as header pins/plug/connector. Used for stand alone implementations where maximal one sensor per port will be used.

Like Minimal-X board, just an even smaller footprint for (almost) single sensor application!


Hardware: Intended for Heltec WiFi Lora 32 or the corresponding TTGO version.


Problem: You have a Heltec WiFi Lora 32 and are tired of wiring the I2C, SPI, UART and 1-Wire ports again and again with lose wires making up a birds nest.

Solution: Use this board and all typical ports are lined up as pin header plugs/connectors for extraction  – each including ground, 3.3V and 5V.


Goodie: You also have the space for components for one voltage divider (through hole resistors).


Features (Version Lxx_v2)

  • Smaller form factor than the Minimal-X Board
  • 1 x I2C connector
  • 1 x 1-Wire connector
  • 1 x SPI connector
  • 1 x UART in 2 4 configurations with 1 x TXRX / 1 x RXTX
  • 1 x analogue connector
  • Turn power off on all the headers/connectors