diff --git a/.gitignore b/.gitignore
index d6f7246..27920ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,5 @@
 .vscode/launch.json
 .vscode/ipch
 boards/pack/Puya.PY32F0xx_DFP.1.1.3a*
+bin/flash.cmd
+bin/out.bin
\ No newline at end of file
diff --git a/README.md b/README.md
index d0d9fd3..8f3fdfb 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,18 @@ If you want to hack on this without a debug probe, an XMODEM bootloader is avail
 - Works as an addon, or standalone with a CR2032
 
 
-## Misc Notes:
+## Binaries
+
+The `bin/` directory contains pre-built binaries. Names are formatted as follows:
+
+`testo_0.0.1_abcdef1_fw2k.bin`
+
+`fw2k` are intended to be sent via XMODEM to the built-in bootloader.
+
+`blfw_x.y.z` are binary files with the bootloader version `x.y.z` prepended. These are intended to be written with a debugger or programmer.
+
+
+## Misc Notes
 
 - This device is using PUYA PY32F003 MCU, an MCU intended for
   the China domestic market. This MCU, as well as other
diff --git a/bin/py32f_bootloader_0.0.3.bin b/bin/py32f_bootloader_0.0.3.bin
new file mode 100644
index 0000000..0ec8877
Binary files /dev/null and b/bin/py32f_bootloader_0.0.3.bin differ
diff --git a/bin/testo_0.0.1_6a2e816_blfw_0.0.3.bin b/bin/testo_0.0.1_6a2e816_blfw_0.0.3.bin
new file mode 100644
index 0000000..dfb90c1
Binary files /dev/null and b/bin/testo_0.0.1_6a2e816_blfw_0.0.3.bin differ
diff --git a/bin/testo_0.0.1_6a2e816_fw2k.bin b/bin/testo_0.0.1_6a2e816_fw2k.bin
new file mode 100644
index 0000000..16b353c
Binary files /dev/null and b/bin/testo_0.0.1_6a2e816_fw2k.bin differ