diff --git a/README.md b/README.md
index fe1d669..bb1143b 100644
--- a/README.md
+++ b/README.md
@@ -16,3 +16,5 @@ The `gdbinit` file contains the device path for uploading via a Pi Pico with [Pi
 
 If you have an official WCH programmer you can probably run `make cv_flash` to use minchlink from ch32v003fun, but I can't test this.
 
+## hardware
+Made for my [ch32_oled](https://git.crispypin.cc/CrispyPin/ch32_oled) project, but all it needs is a 128x32 SSD1306 display connected.