Difference between revisions of "ESP Relay Board VDC"

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==== Update Log for ESP Relay Board VDC ====
redirect page - https://w2.electrodragon.com/gollum/search?q=NWI1115-dat.md
<gallery>
File:ESP_Relay_Board_Configuration_V4.2.png | Latest version of ESP Relay Board VDC version V4.2
File:ESP_DC_Relay_Board_01.JPG | (Old version)
File:Wifi_iot_relay_board_VDC.png | Schematic
File:ESP_Relay_Board_VDC_silk_print.png | VDC Relay board latest silk print 4.2
</gallery>
* 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 ==
{| class="wikitable"
|-
! 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
|}
* Reference calculation see here: https://learn.sparkfun.com/tutorials/voltage-dividers/all

Latest revision as of 15:18, 22 April 2024