Four Channel MOSFET Shield for Wemos D1 Mini can drive four separate loads up to 30v and 5A each.Designed by Mostly Robots in United Kingdom
The Four Channel MOSFET Shield for Wemos D1 Mini contains four separate 30v / 5A MOSEFTs in a D1 mini shield form factor. The MOSFETs can drive four separate loads up to 30v and 5A each, or the cha...Read More…
The Four Channel MOSFET Shield for Wemos D1 Mini contains four separate 30v / 5A MOSEFTs in a D1 mini shield form factor. The MOSFETs can drive four separate loads up to 30v and 5A each, or the channels can be connected in parallel to drive a single bigger load, up to a potential 20A.
I built this for my home automation projects. I use the MOSFET shield to drive water solenoids for my automatic garden watering system and to drive high power mains relays to control hot water immersion heaters.
I run the open source Tasmota firmware on the Wemos D1 Mini and use MQTT messages to activate the various MOSFETs. This integrates seamlessly into most home automation systems.
The shield comes with;
I have tested the boards to 5A per channel and 18A across all four channels. At high currents, the individual MOSFETs get warm as does the pin header. If you intend to use the board for long periods of time at high currents, use a heatsink and solder the wires directly to the board, rather than use pin headers and a Dupont connector.
To read more about the projects I use these boards for read my blog : https://blog.mostlyrobots.net/
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