Merge pull request #3176 from brentru/fj-uf2-updater

Add - Upgrader for nina-fw on FruitJam

Author: brentru

Adafruit_ESP32_Arduino_Demos/ESP32_C6_Firmware_Updater/nina-fw-upgrade-fruitjam.py

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+# SPDX-FileCopyrightText: 2025 Brent Rubell for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+import time
+import board
+import busio
+import neopixel
+import digitalio
+import adafruit_miniesptool
+
+print("nina-fw Updater for Fruit Jam")
+print("Press FruitJam Button 3 to start flashing...")
+
+# Configure Fruit Jam's ESP32-C6 pinout
+tx = board.ESP_TX
+rx = board.ESP_RX
+reset = digitalio.DigitalInOut(board.ESP_RESET)
+reset.direction = digitalio.Direction.OUTPUT
+gpio0 = digitalio.DigitalInOut(board.I2S_IRQ)
+gpio0.direction = digitalio.Direction.OUTPUT
+
+# Setup Fruit Jam button #3
+button = digitalio.DigitalInOut(board.BUTTON3)
+button.direction = digitalio.Direction.INPUT
+button.pull = digitalio.Pull.UP
+
+# Setup NeoPixels
+pixels = neopixel.NeoPixel(board.NEOPIXEL, 5)
+pixels.brightness = 0.5
+
+# Wait for button press to begin flashing
+pixels.fill((0, 0, 255))
+while button.value:
+    time.sleep(0.1)
+
+print("Button pressed! Starting flashing process...")
+pixels.fill((255, 0, 0))
+
+# Initialize UART and esptool
+uart = busio.UART(tx, rx, baudrate=115200, timeout=1)
+esptool = adafruit_miniesptool.miniesptool(uart, gpio0, reset, flashsize=4 * 1024 * 1024)
+
+# Attempt to sync with the ESP32-C6
+esptool.sync()
+chip_name = esptool.chip_name
+if chip_name is None:
+    pixels.fill((255, 0, 0))
+    time.sleep(3)
+    raise RuntimeError("Unable to detect chip type!")
+print("Chip Name:", chip_name)
+print("Chip MAC Addr: ", [hex(i) for i in esptool.mac_addr])
+# Increase baudrate to speed up flashing
+esptool.baudrate = 912600
+
+# Attempt to flash nina.bin to the ESP32-C6
+print("Flashing...")
+pixels.fill((255, 255, 0))
+try:
+    esptool.flash_file("nina.bin", 0x0)
+except (OSError, RuntimeError) as e:
+    pixels.fill((255, 0, 0))
+    time.sleep(2)
+    raise RuntimeError("Flashing failed: " + str(e)) from e
+
+print("Done flashing, resetting..")
+esptool.reset()
+
+# Blink green to show we're done flashing
+while True:
+    pixels.fill((0, 255, 0))
+    time.sleep(0.5)
+    pixels.fill((0, 0, 0))
+    time.sleep(0.5)