LoRa-E5-mini - Revision history

Bertrik Sikken: /* Software */

2023-03-22T08:16:24Z

Software

← Older revision		Revision as of 08:16, 22 March 2023
Line 119:		Line 119:
	The software consists of an STM32 Arduino development environment with support for the Seeed LoRa E5 mini		The software consists of an STM32 Arduino development environment with support for the Seeed LoRa E5 mini
	plus a demonstration sketch.		plus a demonstration sketch.

			Other projects with this chip:
			* https://github.com/stm32duino/STM32LoRaWAN

	==== Development environment ====		==== Development environment ====

Bertrik Sikken: /* Hardware */

2023-03-17T20:35:53Z

Hardware

← Older revision		Revision as of 20:35, 17 March 2023
Line 98:		Line 98:
	Pins:		Pins:
	* PA4/PA5: radio rx/tx switch (internal, not available on the footprint of the E5 module)		* PA4/PA5: radio rx/tx switch (internal, not available on the footprint of the E5 module)
			* PB0: TCXO power?
	* PB6/PB7: serial port		* PB6/PB7: serial port
	* PB5: onboard LED		* PB5: onboard LED

Bertrik Sikken: /* The plan */

2023-02-25T21:46:38Z

The plan

← Older revision		Revision as of 21:46, 25 February 2023
Line 30:		Line 30:
	* Get some kind of Sigfox developer account and play with the Sigfox possibilities		* Get some kind of Sigfox developer account and play with the Sigfox possibilities
	* Get basicmac stack working with the "subghz" SPI port (it appears communication in the Arduino version of BasicMac is done using just "SPI", see https://github.com/LacunaSpace/basicmac/blob/master/target/arduino/hal/hal.cpp#L193). The problem is that the basicmac LoRaWAN stack expects to talk to a SPI port, while the STM32WL HAL provides higher-level functions to write commands and data, see https://github.com/bertrik/Arduino_Core_STM32/blob/seeed_lora_e5_mini/system/Drivers/STM32WLxx_HAL_Driver/Inc/stm32wlxx_hal_subghz.h#L355 . Internally the STM32 SUBGHZ HAL uses functions like [https://github.com/bertrik/Arduino_Core_STM32/blob/seeed_lora_e5_mini/system/Drivers/STM32WLxx_HAL_Driver/Src/stm32wlxx_hal_subghz.c#L1573 SUBGHZSPI_Transmit] that would be a much better fit to the interface expected by the BasicMac stack.		* Get basicmac stack working with the "subghz" SPI port (it appears communication in the Arduino version of BasicMac is done using just "SPI", see https://github.com/LacunaSpace/basicmac/blob/master/target/arduino/hal/hal.cpp#L193). The problem is that the basicmac LoRaWAN stack expects to talk to a SPI port, while the STM32WL HAL provides higher-level functions to write commands and data, see https://github.com/bertrik/Arduino_Core_STM32/blob/seeed_lora_e5_mini/system/Drivers/STM32WLxx_HAL_Driver/Inc/stm32wlxx_hal_subghz.h#L355 . Internally the STM32 SUBGHZ HAL uses functions like [https://github.com/bertrik/Arduino_Core_STM32/blob/seeed_lora_e5_mini/system/Drivers/STM32WLxx_HAL_Driver/Src/stm32wlxx_hal_subghz.c#L1573 SUBGHZSPI_Transmit] that would be a much better fit to the interface expected by the BasicMac stack.
			** Implement/replace functions in https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c
			*** writecmd: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L180
			*** WriteRegs: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L193
			*** WriteReg: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L207
			*** WriteBuffer: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L211
			*** readcmd: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L223
			*** ReadRegs: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L236
			*** ReadReg: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L250
			*** ReadBuffer: https://github.com/LacunaSpace/basicmac/blob/master/lmic/radio-sx126x.c#L256
	* Get compilation and upload working with platformio		* Get compilation and upload working with platformio

Bertrik Sikken: /* Development environment */

2022-08-21T13:53:36Z

Development environment

← Older revision		Revision as of 13:53, 21 August 2022
Line 124:		Line 124:
	** attach the STLink V2 and connect it to the STM32		** attach the STLink V2 and connect it to the STM32
	** TODO: document, or see the Seeed page		** TODO: document, or see the Seeed page
			** NOTE: this does not erase any sigfox credentials (which is a good thing)
	* Clone my Arduino_Core_STM32 repo into ~/Arduino/hardware		* Clone my Arduino_Core_STM32 repo into ~/Arduino/hardware
	cd ~/Arduino/hardware		cd ~/Arduino/hardware

Bertrik Sikken: /* Use cases / ideas */

2022-05-05T08:55:05Z

Use cases / ideas

← Older revision		Revision as of 08:55, 5 May 2022
Line 56:		Line 56:
	* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?		* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?
	-> https://buy.sigfox.com/ but you can only register using an existing device with device id and PAC ... :(		-> https://buy.sigfox.com/ but you can only register using an existing device with device id and PAC ... :(
			* buy one of these https://nl.rs-online.com/web/p/communication-wireless-development-tools/1365801

	Interesting reading:		Interesting reading:

Bertrik Sikken: /* Sigfox migratory animal tracker */

2022-05-05T08:38:41Z

Sigfox migratory animal tracker

← Older revision		Revision as of 08:38, 5 May 2022
Line 60:		Line 60:
	* https://www.disk91.com/2019/technology/sigfox/make-you-own-1-sigfox-iot-device/		* https://www.disk91.com/2019/technology/sigfox/make-you-own-1-sigfox-iot-device/
	* https://www.disk91.com/2019/news/sigfox-news/i-held-the-first-1-sigfox-iot-device/		* https://www.disk91.com/2019/news/sigfox-news/i-held-the-first-1-sigfox-iot-device/
			* https://www.disk91.com/2018/technology/sigfox/create-a-5-autonomous-tracker-with-esp8266-and-sigfox/

	==== LoRaWAN/4FSK tracker in high-altitude ballooning ====		==== LoRaWAN/4FSK tracker in high-altitude ballooning ====

Bertrik Sikken: /* Demonstration sketch */

2022-04-27T18:53:59Z

Demonstration sketch

← Older revision		Revision as of 18:53, 27 April 2022
Line 135:		Line 135:
	[[File:Flash-lora-e5-mini.png\|thumb\|right\|programming from the Arduino IDE]]		[[File:Flash-lora-e5-mini.png\|thumb\|right\|programming from the Arduino IDE]]

	A demonstration sketch is at https://github.com/bertrik/lora-e5 :		A demonstration Arduino sketch is at https://github.com/bertrik/lora-e5 :
	* blinky example, the most basic of all sketches which makes a LED blink demonstration of successful download of an Arduino program		* blinky example, the most basic of all sketches which makes a LED blink demonstration of successful download of an Arduino program
	* helloworld example, sends a text over the serial port		* helloworld example, sends a text over the serial port

Bertrik Sikken: /* Sigfox migratory animal tracker */

2022-04-17T10:03:51Z

Sigfox migratory animal tracker

← Older revision		Revision as of 10:03, 17 April 2022
Line 56:		Line 56:
	* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?		* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?
	-> https://buy.sigfox.com/ but you can only register using an existing device with device id and PAC ... :(		-> https://buy.sigfox.com/ but you can only register using an existing device with device id and PAC ... :(

			Interesting reading:
			* https://www.disk91.com/2019/technology/sigfox/make-you-own-1-sigfox-iot-device/
			* https://www.disk91.com/2019/news/sigfox-news/i-held-the-first-1-sigfox-iot-device/

	==== LoRaWAN/4FSK tracker in high-altitude ballooning ====		==== LoRaWAN/4FSK tracker in high-altitude ballooning ====

Bertrik Sikken: /* Sigfox migratory animal tracker */

2022-04-17T09:30:12Z

Sigfox migratory animal tracker

← Older revision		Revision as of 09:30, 17 April 2022
Line 51:		Line 51:
	* a 16-byte key		* a 16-byte key
	* a 4-byte id		* a 4-byte id
	* an 8-byte ~~"pac"~~		* an 8-byte PAC (porting authorization code)

	Next steps:		Next steps:
	* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?		* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?
			-> https://buy.sigfox.com/ but you can only register using an existing device with device id and PAC ... :(

	==== LoRaWAN/4FSK tracker in high-altitude ballooning ====		==== LoRaWAN/4FSK tracker in high-altitude ballooning ====

Bertrik Sikken: /* Sigfox migratory animal tracker */

2022-04-17T08:57:33Z

Sigfox migratory animal tracker

← Older revision		Revision as of 08:57, 17 April 2022
Line 52:		Line 52:
	* a 4-byte id		* a 4-byte id
	* an 8-byte "pac"		* an 8-byte "pac"

			Next steps:
			* find out where to apply for a developer account, to register devices, get access to the backend, etc., this perhaps: https://build.sigfox.com/technical-quickstart ?

	==== LoRaWAN/4FSK tracker in high-altitude ballooning ====		==== LoRaWAN/4FSK tracker in high-altitude ballooning ====