ESP32LR20 - WIFI 8 x 16A relays
Devantech
Overview
The ESP32LR20 is a WIFI connected relay module using the popular ESP32. It provides 2 relays capable switching up to 16Amps. The normally open relay contacts have snubbers fitted across them, and can drive inductive loads such as contactors and solenoids. Power for the board is 12v dc, which can be provided by a standard universal wall power supply. A 1A or greater supply should be selected.
Technical data
|
ESP32LR20 Controlled over WIFI using preprogrammed command sets or html page. |
|
|---|---|
| Relays | 2 with snubbers for inductive loads |
| Power | 12V DC adaptor, supplied separately |
| Control interface | HTTP (webpage), HTML commands, MQTT commands or plain text commands (ASCII terminal) |
| Relay current | Up to 16Amp @24vdc or 250vac |
| Output connections | Screw Terminals for N/O N/C and Common contacts |
| Programming connection | USB programmable with Arduino IDE |
Control Protocols
- 1. Simple plain text commands sent to the module.
- 2. HTML commands
- 3. MQTT
- 4. A built in webpage
WiFi
The ESP32LR20 connects via WiFi to your network. Therefore it must be located in a position where it gets a good WiFi signal. The module should not be enclosed in a metal box/cabinet as this will shield the WiFi signal. You can check the signal level by looking at the RSSI figure which is reported by the ST (STatus) command.
Configuration
The ESP32LR20 is configured by connecting a USB cable to your PC and running a terminal program. PuTTY is a good option if you dont have any other preferences. The serial port should be set to 115200 baud, 8 bit, 1 stop, no parity, no flow control.
Manufacturer's data
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Product information for: ESP32LR20 - WIFI 2 x 16A relays
Publishing date (date of last technical specification): 2018-09-14
Length: 101 mm
Width: 53 mm
Height: 20 mm
Weight: 60 g
Shipping weight: 300 g
Manufacturer: Devantech
Brand: ROBOT ELECTRONICS
Article number: DEV-ESP32LR20
Manufacturer's part number: ESP32LR20
The article ESP32LR20 - WIFI 2 x 16A relays is listed in the following categories:
Modules > Relay > Wireless > Programmable
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updated: 17.11.2023
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EUR 38.98 = GBP 33.33
EUR 32.76 = GBP 28.01
(€1=GBP0.85505)
EUR 38.98 = USD 44.62
EUR 32.76 = USD 37.50
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EUR 38.98 = CAD 56.19
EUR 32.76 = CAD 47.23
(€1=CAD1.4416)
EUR 38.98 = AUD 61.16
EUR 32.76 = AUD 51.40
(€1=AUD1.5690)
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About ROBOT ELECTRONICS
ROBOT ELECTRONICS is a brand by English manufacturer Devantech Ltd., based in Norfolk. Product range comprises sensors, in particular ultrasonic or compass, servocontrollers as well as small robot drive systems or relay modules with various interfaces. Sensors are produced in England and are of consistently high quality.
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