Module with 2 relays controlled by the I2C interface. It is based on the ATTiny84 microcontroller, which is pre-programmed. The I2C address of ATTiny84 is software configurable. Each relay can switch currents up to 25 A at 12-280 V AC. The module is equipped with a Qwiic connector. A guide and Arduino libraries are available for the module.
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Flexible Qwiic cable, 150 mm long. On one side it is terminated with a female Qwiic connector, and on the other side with single female goldpin connectors. SparkFun PRT-17261
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Flexible 4-core cable, 100 mm long, terminated on both sides with a Qwiic plug. Sparkfun PRT-17259
Flexible 4-core cable, 200 mm long, terminated on both sides with a Qwiic plug. Sparkfun PRT-17258
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The module is equipped with four 10A / 250VAC relays controlled independently via a serial bus (UART) or from a PC (through a microUSB connector). The NO / NC contacts of the relays have been led to the ARK screw terminals. ICSTATION ICSE012A
Programmable time module with relay, allows you to set the time and manner of relay reaction on the trigger signal, has a built-in LED display. It can be supplied with voltage from the range of 6 - 30VDC or using the microUSB connector
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The module with the HLS8-T73 relay with a load up to 5 A. The board is equipped with a Grove connector and is controlled by a digital input. Seeed Studio 103020005
The module with the TPL5110 timer, which can generate a signal with an adjustable period from 100 ms to 2 h. It also works well as an external Watchdog Timer. Adafruit 3435
Gravity: Digital 10A Relay Module is a module with 10A 35VAC / 30VDC relay compatible with devices with control signals in the range of 2.8 ... 5.5V. DFRobot DFR0473
The module contains a 5 V relay with a maximum current of 10 A (250 VAC) and optoisolated inputs, and with jumpers it is possible to select high or low switching. The module is equipped with screw connectors
Module with 5 A 250 VAC relay. DFRobot DFR0017
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Relay module for the WeMos D1 Mini WiFi set
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Compact module with MOSFET IRF520 24V/5A transistor.
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Module with a 12 V relay and a timer. It allows you to turn the device on and off cyclically at a specified time using potentiometers. It can also operate in single trigger mode, which allows the device to be turned on after a signal has been applied for a specified period of time. The operating time can be adjusted from 1 s to 100 s or from 1 s to 15 min
Module with 2 relays controlled by the I2C interface. Each relay can switch currents up to 25 A at 12 to 280 V AC. SparkFun COM-16810