Sondes de température BLE

Firmware : https://pvvx.github.io/BTH01/

Démarrage d'une VM :

qemu-system-x86_64  \
  -cpu host -machine type=q35,accel=kvm -m 2048 \
  -nographic \
  -snapshot \
  -netdev id=net00,type=user,hostfwd=tcp::2222-:22 \
  -device virtio-net-pci,netdev=net00 \
  -drive if=virtio,format=qcow2,file=ubuntu-24.04-server-cloudimg-amd64.img \
  -drive if=virtio,format=raw,file=seed.img \
  -chardev serial,path=/dev/ttyUSB0,id=hostusbserial -device pci-serial,chardev=hostusbserial
 
ubuntu@cloudimg:~$ sudo dmesg -T | grep tty
[Wed Jul  9 19:26:00 2025] Command line: BOOT_IMAGE=/vmlinuz-6.8.0-60-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0
[Wed Jul  9 19:26:00 2025] Kernel command line: BOOT_IMAGE=/vmlinuz-6.8.0-60-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0
[Wed Jul  9 19:26:00 2025] printk: legacy console [tty1] enabled
[Wed Jul  9 19:26:00 2025] printk: legacy console [ttyS0] enabled
[Wed Jul  9 19:26:01 2025] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[Wed Jul  9 19:26:01 2025] 0000:00:03.0: ttyS4 at I/O 0xc180 (irq = 23, base_baud = 115200) is a 16550A
[Wed Jul  9 19:26:04 2025] systemd[1]: Created slice system-serial\x2dgetty.slice - Slice /system/serial-getty.
[Wed Jul  9 19:26:04 2025] systemd[1]: Expecting device dev-ttyS0.device - /dev/ttyS0...
 
 
git clone https://github.com/pvvx/THB2.git
cd THB2/
 
# flash boot 
sudo python3 rdwr_phy62x2.py -p /dev/ttyS4 -e -r wh bin/BOOT_BTH01_v21.hex
 
# flash app
sudo python3 rdwr_phy62x2.py -p /dev/ttyS4 -r we 0x10000 bin/BTH01_v21.bin

Firmware : https://github.com/shmuelzon/esp32-ble2mqtt

Compilation :

idf.py build

Flash :

esptool --chip esp32 -b 460800 --before default-reset --after hard-reset write-flash --flash-mode dio --flash-size 4MB --flash-freq 40m 0x1000 build/bootloader/bootloader.bin 0x8000 build/partition_table/partition-table.bin 0xd000 build/ota_data_initial.bin 0x10000 build/ble2mqtt.bin 0x310000 build/fs_0.bin 0x350000 build/fs_1.bin

Log :

2025-08-16 18:06:25.158656 (blegw-etage.home): I (8350) BLE2MQTT: Connected to the network, connecting to MQTT
2025-08-16 18:06:25.162437 (blegw-etage.home): I (8350) MQTT: Connecting MQTT client
2025-08-16 18:06:25.179555 (blegw-etage.home): I (8380) MQTT: MQTT client connected
2025-08-16 18:06:25.179740 (blegw-etage.home): I (8380) BLE2MQTT: Connected to MQTT, scanning for BLE devices
2025-08-16 18:06:25.349979 (blegw-etage.home): I (8490) BLE2MQTT: Discovered BLE device: 4b:5b:db:47:06:85 (RSSI: -92), not connecting
2025-08-16 18:06:27.201456 (blegw-etage.home): I (10400) BLE2MQTT: Discovered BLE device: 6f:2b:68:15:3e:e3 (RSSI: -92), not connecting
2025-08-16 18:06:27.400887 (blegw-etage.home): I (10570) BLE2MQTT: Discovered BLE device: a4:c1:38:1f:65:29 (RSSI: -74), not connecting
2025-08-16 18:06:28.216789 (blegw-etage.home): I (11370) BLE2MQTT: Discovered BLE device: 48:b0:2d:06:bd:e7 (RSSI: -65), not connecting
2025-08-16 18:06:28.422484 (blegw-etage.home): I (11590) BLE2MQTT: Discovered BLE device: 40:b7:fc:17:a3:68 (RSSI: -79), connecting
2025-08-16 18:06:28.422627 (blegw-etage.home): I (11590) BLE2MQTT: Discovered BLE device: c1:f7:9c:b5:44:4a (RSSI: -87), not connecting
2025-08-16 18:06:39.896083 (blegw-etage.home): I (23060) BLE2MQTT: Connected to device: 40:b7:fc:17:a3:68, scanning
2025-08-16 18:06:40.442835 (blegw-etage.home): I (23640) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/GenericAccess/DeviceName = BTH01-17A368
2025-08-16 18:06:40.613123 (blegw-etage.home): I (23760) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/GenericAccess/Appearance = 768
2025-08-16 18:06:40.710396 (blegw-etage.home): I (23880) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/GenericAccess/PeripheralPreferredConnectionParameters = 24,24,29,360
2025-08-16 18:06:40.914499 (blegw-etage.home): I (24060) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/DeviceInformation/ModelNumberString = BTH01
2025-08-16 18:06:40.952098 (blegw-etage.home): I (24150) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/DeviceInformation/SerialNumberString = C44013-59598320-00
2025-08-16 18:06:41.119143 (blegw-etage.home): I (24270) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/DeviceInformation/FirmwareRevisionString = github.com/pvvx
2025-08-16 18:06:41.223623 (blegw-etage.home): I (24390) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/DeviceInformation/HardwareRevisionString = 0014
2025-08-16 18:06:41.325836 (blegw-etage.home): I (24480) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/DeviceInformation/SoftwareRevisionString = V2.1
2025-08-16 18:06:41.369860 (blegw-etage.home): I (24570) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/DeviceInformation/ManufacturerNameString = Tuya
2025-08-16 18:06:42.454868 (blegw-etage.home): I (25620) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/BatteryService/BatteryLevel = 100
2025-08-16 18:06:42.696958 (blegw-etage.home): I (25890) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/EnvironmentalSensing/Temperature = 2726
2025-08-16 18:06:42.957625 (blegw-etage.home): I (26130) BLE2MQTT: Publishing: 40:b7:fc:17:a3:68/EnvironmentalSensing/Humidity = 5608

Debug série

picocom -b 115200 --omap crcrlf --echo /dev/ttyUSB0