#LoRa Module @PINE64 with the funny PCB Trace behind ... Took me all night to figure out why 😂

https://youtu.be/cJ0wpANpbyc

Soldering the springy #LoRa Module @PINE64

https://youtu.be/cJ0wpANpbyc

Pins on one edge of the #Pine64 #LoRa Module are replicated ... So it's actually Breadboard-Friendly

The new #LoRa Module @PINE64 is based on Semtech SX1262 ... Here's the Reference Implementation of the SX1262 Driver

https://github.com/Lora-net/LoRaMac-node/tree/master/src/radio/sx126x

Straight vs Coiled #LoRa Antenna ... It's the Antenna Length that matters

https://www.thethingsnetwork.org/forum/t/antenna-length-for-868-and-433-mhz/5378

Shorter Antenna for Higher Frequency ... Because Antenna Length is Wavelength divided by 4

https://www.thethingsnetwork.org/forum/t/antenna-length-for-868-and-433-mhz/5378

Now porting to #BL602: Driver for #Pine64 #LoRa Module (SX1262) ... Let's see how fast we can do this 🚀

https://github.com/lupyuen/bl_iot_sdk/tree/sx1262/components%2F3rdparty%2Flora-sx1262

#BL602 #LoRa SX1262 Driver ... A.k.a. #Pine64 LoRa Module ... Porting in progress

https://github.com/lupyuen/bl_iot_sdk/tree/sx1262/components/3rdparty/lora-sx1262

#BL602 #LoRa SX1262 Driver Builds OK! Now we implement the hardware abstraction stubs for BL602

https://github.com/lupyuen/bl_iot_sdk/tree/sx1262/components/3rdparty/lora-sx1262

We map these #LoRa SX1262 functions to the #BL602 Hardware Abstraction Layers: GPIO, SPI and Interrupts

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c

#BL602 #LoRa SX1262 Driver ... One last build error to be fixed ... G'nite!

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c

#LoRa SX1262: VREG vs DCC vs VCC ... Which shall I connect to power? 🤔

https://semtech.my.salesforce.com/sfc/p/#E0000000JelG/a/2R000000HT76/7Nka9W5WgugoZe.xwIHJy6ebj1hW8UJ.USO_Pt2CLLo

#LoRa SX1262 Power Amplifier baffles me ... Wish I was an Engineer 🤔

https://semtech.my.salesforce.com/sfc/p/#E0000000JelG/a/2R000000HT76/7Nka9W5WgugoZe.xwIHJy6ebj1hW8UJ.USO_Pt2CLLo

HopeRF RFM90 Datasheet explains VREG, DCC and VCC ... Challenging my Chinese skills

🤔

#LoRa SX1262 (top) vs SX1276 (bottom) ... Pinouts are similar

👍

Pine64 #LoRa SX1262 / RFM90 Module ... Connected to #PineCone #BL602 @ThePine64 ... Have some Wonderful Copenhagen Butter Cookies!

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/include/sx126x-board.h#L36-L63

PineCone #BL602 with #Pine64 #LoRa Module all boxed up ... Let's test this! 🙏

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/include/sx126x-board.h#L36-L63

Run our 3-In-1 #BL602 Script that Builds, Flashes and Runs BL602 Firmware ... Works exactly like 3-in-1 coffee mix 👍

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/run.sh

Let's test the SPI Connection between #BL602 and #LoRa SX1262 by reading some registers ... Yep the values are consistent ... Looks promising 🙏

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/sdk_app_lorawan/demo.c#L112-L128

Starting the #BL602 #LoRa SX1262 Driver ... Fails with an SPI Assertion Failure 😭 ... Let's find out what's wrong 🤔

(Yep Assertions are very helpful! 👍)

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c#L152-L158

Why did #BL602 #LoRa SX1262 Driver fail? Because BL602 SPI Port has not been initialised! 🙄 Let's fix this 👍

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c#L152-L158

Yep printf() is horrible for Embedded Programming ... But it was really helpful for verifying the init flow of our #BL602 #LoRa SX1262 Driver

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/components/3rdparty/lora-sx1262/src/sx126x-board.c#L168-L232

#BL602 #LoRa SX1262 Driver now transmits LoRa Packets without errors ... Let's sniff the airwaves with AirSpy SDR and verify 👃

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/sdk_app_lorawan/demo.c

AirSpy SDR shows a Tiny Blip transmitted by our #BL602 #LoRa SX1262 Driver ... Looks unusually small compared with SX1276 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/sx1262/customer_app/sdk_app_lorawan/sdk_app_lorawan/demo.c

Here's our Super Tiny #BL602 #LoRa SX1262 Blip ... In super slow mo

🤔