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ESP32LR42 - WIFI 4 x 16A relays

Devantech

Overview

The ESP32LR42 is a WIFI connected relay module using the popular ESP32. It provides 4 relays capable switching up to 16Amps and 2 digital inputs with pull-ups than can interface directly with volt free contacts. 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

ESP32LR42
Controlled over WIFI using preprogrammed command sets or html page.
Relays 4 with snubbers for inductive loads
Inputs 2 volt free contact compatible inputs or 3.3v digital inputs
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 ESP32LR42 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 ESP32LR42 is configured by connecting a USB cable to your PC and running a terminal program. PuTTY is a good option if you don’t 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

ESP32LR42 manual (pdf)

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Product information for: ESP32LR42 - WIFI 4 x 16A relays

Publishing date (date of last technical specification): 2018-09-14
Length: 101 mm
Width: 83 mm
Height: 20 mm
Weight: 110 g
Shipping weight: 300 g
Manufacturer: Devantech
Brand: ROBOT ELECTRONICS
Article number: DEV-ESP32LR42
Manufacturer's part number: ESP32LR42

The article ESP32LR42 - WIFI 4 x 16A relays is listed in the following categories:

Modules > Relay > Wireless > Programmable

ESP32LR42 - WIFI 4 x 16A relays DEV-ESP32LR42

ESP32LR42 - WIFI 4 x 16A relays

from ROBOT ELECTRONICS
Newest specification: 09/2018
EUR 43.98
plus EUR 5.95 shipping costs
Prices incl. VAT
EUR 36.96
plus EUR 5.00 shipping costs
Prices excl. VAT


Article no.: DEV-ESP32LR42
More details...
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Newest specification: 09/2018
EUR 31.98
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Article no.: DEV-ESP32LR20
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ESP32LR88 - WIFI 8 x 16A relays DEV-ESP32LR88

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Newest specification: 06/2018
EUR 71.98
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Order online now

EUR 43.98 EUR 36.96
Price incl. VAT Price excl. VAT
plus EUR 5.95 shipping costsplus EUR 5.00 shipping costs

Immediate delivery

Available for immediate delivery while stock lasts.

2 in stock
updated: 26.03.2020

Information on currency

EUR 43.98 = GBP 37.14 EUR 36.96 = GBP 31.21 (€1=GBP0.84445)
EUR 43.98 = USD 48.77 EUR 36.96 = USD 40.98 (€1=USD1.1088)
EUR 43.98 = CAD 63.62 EUR 36.96 = CAD 53.46 (€1=CAD1.4465)
EUR 43.98 = AUD 71.18 EUR 36.96 = AUD 59.82 (€1=AUD1.6184)

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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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