SKU: 91098480829

2-CH Triac Dimmer HAT for Raspberry Pi, Integrated MCU, UART / I2C

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Description

2-CH Triac Dimmer HAT for Raspberry Pi, Integrated MCU, UART / I2CThis is a Bidirectional SCR Isolated HAT, Dual Channels Triac Output Control, ideal for lighting and industrial motor automation projects. This includes smart lighting, controlling motors for things such as ventilation, pump control, valve control, heating and air conditioning systems etc.. Basically anything that runs on mains A C power, either through a switch or variable voltage current control. This device has some advantages over a traditional

This is a Bidirectional SCR Isolated HAT, Dual Channels Triac Output Control, ideal for lighting and industrial motor automation projects. This includes smart lighting, controlling motors for things such as ventilation, pump control, valve control, heating and air conditioning systems etc.. Basically anything that runs on mains A/C power, either through a switch or variable voltage/current control.

This device has some advantages over a traditional relay since is offers higher efficiency, no mechanical wear, along with quicker response and adjustable outputs.

Key Features

  • STM32F0 MCU controller, requires minimal Raspberry Pi resource, UART / I2C communication
  • RC snubber circuit, protect the triac from power fluctuation
  • Up to 4400W output power, under ideal heat dissipation condition
  • Optocoupler isolation, preventing interference from the high voltage circuit
  • Indicator for easy checking the status of triac
  • Reserved UART and I2C interface, for working with other host control boards
  • Data rate: up to 921.6kbps for UART,up to 1024kbps for I2C
  • Comes with development resources and manual (examples in C and Python)

When connecting this to your Raspberry Pi, or Jetson Nano development board (this board uses the RPI standard 40pin GPIO header), you can easily interface high voltage devices such as hosehold lighting, or industrial pumps/motors to your automation project.

STM32F0 MCU Onboard

Integrates STM32F030 MCU, Supports Directly Command Control, Easy For Developping Quicker Response, Requires Minimal Resource From The Raspberry Pi

High Data Rate, Always One Step Ahead

Up To 921.6kbps For UART,Up To 1024kbps For I2C

Powerful Output Power

Up To 4400W Output Power, Under actively cooled environments (extra fan required to ensure proper heat dissipation)

Optocoupler Isolation Safety First!

Optoisolated Solution, Preventing Interference From The High Voltage Circuit

Warning: Please never touch the high voltage circuit on this board, and always make sure you install with sufficient insulation and isolation to avoid any contact with the board while it is under power.

Applications

What's On Board

  1. BTA24-600 high power bidirectional triac
  2. MOC3021S photocoupler, the triac driver
  3. LTV-824S AC photocoupler
  4. RC snubber circuit
  5. LM358DR OP amplifier
  6. STM32F030F4P6 main controller
  7. RT9193-33PB power chip
  8. Output indicator
  9. 20A blow fuse
  10. Standard Raspberry Pi 40PIN GPIO header
  11. MCU control interface, for use with other host control boards like Arduino
  12. AC input
  13. AC output
  14. Data bus selection
    A: use Raspberry Pi I2C bus
    B: use Raspberry Pi UART bus
  15. Mode selection
    A: I2C mode
    B: UART mode

Specifications

AC VOLTAGE 100 ~ 600V UART DATA RATE 1.2 ~ 921.6 kbps
AC CURRENT 0~20A I2C DATA RATE 1024 kbps
CONTROLLER STM32F030 LOGIC LEVEL VOLTAGE 3.3V/5V
COMMUNICATION BUS I2C/UART DIMENSIONS 65 × 56.5(mm)

Pinout Definition

Dimensions

Documentation

  • Wiki complete with C and Python examples

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91098480829

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Julia Taylor
Lowell, US
★★★★★ 5
Great for my frizzy hair
Size: Queen (20" X 30"), Color: 06 - Black, Number of Items: 2
I got these because I really wanted something to helps tame my frizzy hair but also help with my skin. I have very sensitive skin and my break outs have reduced so much! They fit my standard pillows without an issues. The color never fades, they wash and dry well. The quality is on point. Worth it.
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Reviewed in the United States on May 17, 2026
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Amazon customer
Battle Creek, US
★★★★★ 5
Great quality & colors
Size: Body (20" X 54"), Color: 03 - Beige, Number of Items: 1
Good price so is easier to buy several colors. Perfect fit for a body pillow. Super there are pillow cases to match. Soft! Great quality.
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Reviewed in the United States on May 25, 2026
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mmickey7
Belleville, US
★★★★★ 5
Highly recommend
Size: King/Cali King(102"x90"), Color: Gray
I love this comforter so, so much. More than I ever thought I would. Yes, it sometimes slips off but the comfortableness of it outweighs this hands down. It feels nice, not too hot and the weight is perfect. Quality and durability have been excellent. I need one in white! This was a sale that came with a different white comforter that I purchased from Bedsure that I still haven't taken out of the package because I ended up loving this one so much!
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Reviewed in the United States on October 12, 2025
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Anthony Neiger
Dallas, US
★★★★★ 5
Comforter only fits king sized bed one way, look for the lengthwise seams on the sides.
Size: King/Cali King(102"x90"), Color: Gray
Most comfortable comforter I've ever owned. Can't explain it, it truly feels cool while keeping you warm. We tripled it with the cooling bamboo sheets and a cooling bamboo mattress protector and are sleeping way better. Don't waste hundreds on luxury brands that dont work half as good as these, believe me we tried them and these are way better.
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Reviewed in the United States on April 4, 2026
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Morgan
Belleville, US
★★★★★ 5
~* obsessed *~
Size: King/Cali King(102"x90"), Color: Gray
i am obsessed with this comforter. super soft and silky, and actually keeps me cool at night! it is thinner than i had thought it was but it is not an issue at all. i did think it was a bit on the small size for king bed but my fiancee and i havent had an issue with that either. another plus is that it is not like all these bulky comforters you have to fight to get into the washer/dryer! VERY easy to wash! i will likely just continue buying these when i eventually need a new one!
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Reviewed in the United States on April 8, 2026

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