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firmware/README.md

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+# HackSpaceCon 2026 Artemis 2 Badge
+
+art idea by Brooke
+<br>PCB design and layout by true
+<br>code by true
+
+
+## Hardware errata
+
+See [hardware/](../hardware/README.md) directory for a README
+
+
+## Building
+
+1) Download [Mounriver Studio MRS2](https://mounriver.com/download)
+2) Load project
+3) Build (`F7`)
+
+
+## Flashing
+
+- Solder connections to debug headers and use a WCH-Link to debug and program
+
+or
+
+- Have a Type A to C cable ready (see `hardware/README.md` for more info)
+- Remove the battery
+- Turn badge to ON position
+- Press and hold `ACT` button while plugging in USB
+- Use a WCH ISP tool such as `WCHISPStudio` or `wchisp` to flash the built `.hex`