Actually works

Makefile

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# When this baud does not work, try 115200
+FLASH_BAUD := 500000
+
+# Image to flash
+FLASH_IMAGE := sumofirmware.bin
+
+# Try to automatically find the serialport
+SERIAL_PORT := $(shell find /dev -iname "tty*usb*")
+
+all: erase flash delay update reset
+
+delay:
+	sleep 3
+
+reset:
+	esptool.py -p $(SERIAL_PORT) --after hard_reset read_mac
+
+update:
+	ampy -d 0.5 -p $(SERIAL_PORT) put main.py
+
+erase:
+	esptool.py -p $(SERIAL_PORT) -b $(FLASH_BAUD) erase_flash
+
+image:
+	esptool.py -p $(SERIAL_PORT) -b $(FLASH_BAUD) read_flash 0x1000 0x250000 sumofirmware.bin
+
+flash:
+	esptool.py -p $(SERIAL_PORT) -b $(FLASH_BAUD) write_flash --flash_mode dio 0x1000 $(FLASH_IMAGE)
+
+serial:
+	picocom --baud 115200 -q $(SERIAL_PORT)
+