From 47a6f5a0f912022d13e2f5c586b892f4c5e47452 Mon Sep 17 00:00:00 2001 From: Justin Bunton <130115204+Bunton33@users.noreply.github.com> Date: Tue, 13 Oct 2026 15:39:58 -0400 Subject: [PATCH] docs: add the GPIO Header pinout to the MSR-2 addon guides (#1154) The AIR-1 and MTR-1 GPIO Header guides and the LED strip tutorial already show the pinout image; the MSR-2 guide (Home Assistant and Homey) did not. Add a short pinout section with the existing gpio-header-pinout.webp, noting that IO18 and IO19 can't be used while flashing and IO0 and IO1 carry I2C. Co-authored-by: Claude Opus 5.5 --- .../products/msr2/addons/adding-gpio-header-to-msr-2.md | 6 ++++++ docs/products/msr2/addons/adding-gpio-header-to-msr-2.md | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/docs/homey/products/msr2/addons/adding-gpio-header-to-msr-2.md b/docs/homey/products/msr2/addons/adding-gpio-header-to-msr-2.md index 7fb68dcc91..215b851e98 100755 --- a/docs/homey/products/msr2/addons/adding-gpio-header-to-msr-2.md +++ b/docs/homey/products/msr2/addons/adding-gpio-header-to-msr-2.md @@ -28,6 +28,12 @@ description: "Tutorial on adding the GPIO Header to your MSR-2." ![MSR-2 with the GPIO Header backplate fully seated and the header exposed](/assets/msr-2-gpio-header-pic-4.jpg) +## GPIO Header pinout + +With the header installed, these are the pins you can wire to. IO18 and IO19 can't be used while you flash the MSR-2, and IO0 and IO1 carry the I2C bus (SDA and SCL). + +![MSR-2 GPIO Header pinout. Left: GND, IO18, IO19, IO4, IO2, IO6. Right: 5V, IO7, SDA IO1, SCL IO0, GND, 3V](/assets/gpio-header-pinout.webp) + !!! tip "Make sure to check out our MSR-2 GPIO Header LED Strip Tutorial!" Brandon AKA SmartHomeSellout made this neat tutorial for how to connect a short LED strip to your MSR-2 diff --git a/docs/products/msr2/addons/adding-gpio-header-to-msr-2.md b/docs/products/msr2/addons/adding-gpio-header-to-msr-2.md index 7627c9bd96..4712267ff9 100755 --- a/docs/products/msr2/addons/adding-gpio-header-to-msr-2.md +++ b/docs/products/msr2/addons/adding-gpio-header-to-msr-2.md @@ -28,6 +28,12 @@ description: Tutorial on adding the GPIO Header to your MSR-2. ![MSR-2 with the new back cover fully attached around the GPIO Header](/assets/msr-2-gpio-header-pic-4.jpg) +## GPIO Header pinout + +With the header installed, these are the pins you can wire to. IO18 and IO19 can't be used while you flash the MSR-2, and IO0 and IO1 carry the I2C bus (SDA and SCL). + +![MSR-2 GPIO Header pinout. Left: GND, IO18, IO19, IO4, IO2, IO6. Right: 5V, IO7, SDA IO1, SCL IO0, GND, 3V](/assets/gpio-header-pinout.webp) + !!! tip "Make sure to check out our MSR-2 GPIO Header LED Strip Tutorial!" Brandon AKA SmartHomeSellout made this neat tutorial for how to connect a short LED strip to your MSR-2