I have seen some older posts that had boards available for sale but when trying to access sites they all appear to be down is anyone making boards at the moment for sensors?
You don’t need “boards”.
Mycodo is designed to use all of the supported inputs and outputs listed in the documentation simply by directly connecting them to the Raspberry Pi’s GPIO header pins with wires… I/O interfaces include (I2C, SPI, 1-Wire, UART, PWM, etc.)
What sensors are you wanting to use? Are they listed in the supported hardware?
Supported Inputs…
Supported Outputs…
Raspberry Pi GPIO Interface Pinout helper…
Many of the sensors listed in the Mycodo documentation are also compatible with Tasmota firmware for the inexpensive ESP-32 dev-kit boards like this one…
You can build wireless sensor clusters by connecting your sensors to the ESP-32’s GPIO pins, run the Tasmota firmware on the ESP32, and use the MQTT protocol to send the sensor data over WiFi to Mycodo.