2-Channel Triac HAT for Raspberry Pi [Discontinued] _MAKE_CABLE_HDMI 5 mm if you remove

5 mm if you remove the strip from the casing

so all you need to do is specify the total width and height of your matrices

It is the most powerful board to develop wearable applications

Datasheet for DS-AT-1217

we agreed with Collin that this is a really great PCB holder

2-Channel Triac HAT for Raspberry Pi [Discontinued] _MAKE_CABLE_HDMI 5 mm if you removeThe Waveshare 2 channel Triac HAT is an advanced add on board for the Raspberry Pi which allows you to switch high voltages without the traditional shortfalls of relays. Triacs have no mechanical wear, make no switching noise, have no EMI due to switching sparks arcs and are generally more compact. The HAT can switch up to 4400W (max) across two devices and features a dedicated onboard STM32F0 microcontroller which supports direct command control,