Difference between revisions of "ESP Relay Board VDC"

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* Reference calculation see here: https://learn.sparkfun.com/tutorials/voltage-dividers/all
* Reference calculation see here: https://learn.sparkfun.com/tutorials/voltage-dividers/all
== Specific for Relay Board VDC ==
{| class="wikitable sortable"
|-
! Jumper !! Header text !! Header text
|-
| U2 || wireless RF receiver, output TTL signal to ESP12F pins, DO -> IO2, D1 -> IO15|| -
|-
| JP2 || Alternative power supply pin 5V-24V, = terminal power input || -
|-
| JP7 || Power input selection, choose between 5V or 5-24V.|| -
|-
| JP1 || DHT, ADC, RST || -
|-
| JP6 || row 1: RXD, TXD, 5V, GND, row 2: 3.3V, IO4, IO5, IO15 || -
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| Green Out Input Terminal || VIN 5-26V (top / inside of the board), ground (close to the edge outside of the board) || -
|}

Revision as of 15:14, 22 April 2024

Update Log for ESP Relay Board VDC

  • Latest version of ESP Relay Board VDC version V4.2

  • (Old version)

  • Schematic

  • VDC Relay board latest silk print 4.2

  • V4.2 added voltage divider on back side of PCB, this need to be soldered manually.
  • V4.1 pin headers changed to two group. RST, ADC and DHT_IO16 pins on left side now.

Analag Input A0

Back Side Jumper Header text
Connect No voltage divider, A0 directly connect to ESP-12 Module ADC pin.
Disconnect A0 input via voltage divider to ADC = 220K / 100K, maximium input A0 3.3V
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