User Tools

Site Tools


it:microcontroller

This is an old revision of the document!


Temperature monitor using ESP32 via wifi and server

General

  • beware 3.3 vs 5v input pins – wemos 3.3v in

2020-08-23

Wemos D1R1

R1 vs R2 https://tasmota.github.io/docs/devices/Wemos-D1-R1-%26-R2/

inverted high and low pins for LED

can't get dht11 to work on esp8266 D1 R1

ESP32

  • generic board and nano does not have right pins for LED
  • NodeMCU-32S does have the right pins
Issue

Have problem uploading sketch onto W32 see: https://github.com/espressif/esptool/issues/226

  • problem uploading sketch
  • tried pressing boot or en button during the connection but did not work
  • cannot upload sketch with DHT-11 connected but able to do without it connected
  • finally got the DHT working and output to serial monitor
it/microcontroller.1598176773.txt.gz · Last modified: 2020/08/23 09:59 by admin