Lup Yuen Lee 李立源 @lupyuen@qoto.org

Maybe #BL602 High Level Trigger Interrupt = High Priority Interrupt = Sync Interrupt? 🤔 ... Lemme check the original Chinese Reference Manual

https://github.com/bouffalolab/bl_docs/tree/main/BL602_RM/en

#BL602 GPIO Interrupts: Should we use Sync or Async Interrupts for #LoRa? 🤔 ... BL602 IoT SDK uses Async Interrupts to handle GPIO Buttons ... Let's do the same for LoRa

https://github.com/bouffalolab/bl_iot_sdk/blob/master/components/hal_drv/bl602_hal/hal_button.c#L270-L317

#BL602 GPIO Interrupt ... According to the BL602 Reference Manual 🤔

https://github.com/bouffalolab/bl_docs/tree/main/BL602_RM/en

Open Source Firmware for #MagicHome #BL602 WiFi LED Controller ... Maybe 🤔

https://github.com/esphome/feature-requests/issues/1049

How we configure a GPIO Interrupt on #BL602 ... For receiving #LoRa Packets

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/sx1276-board.c#L304-L340

#LoRaWAN Devices can report their Battery Level ... And Signal To Noise Ratio 👍

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

#LoRaWAN Network can throttle a LoRaWAN Device ... By sending the Duty Cycle command

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

Duty Cycle Limits for #LoRaWAN ... Means that our LoRaWAN Device can't blast messages continuously over the airwaves ... Gotta be fair to other devices

https://www.thethingsnetwork.org/docs/lorawan/duty-cycle.html

Simple fix for a PlatformIO build error in #WisBlock's LoRaP2P_TX sample ... My first Pull Request for WisBlock!

https://github.com/RAKWireless/WisBlock/pull/10

Wiring looks too sus among us 🤔 ... #PineCone #BL602 @PINE64 connected to #LoRa Hope RF96 ... Including DIO0 to DIO3

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/sx1276.h#L24-L60

To receive #LoRa Packets on #BL602: We listen for GPIO Interrupts on SX1276 Pins DIO0 to DIO3 (4 pins) ... Yep we're nearly out of GPIO Pins 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/sx1276.h#L24-L60

Receiving #LoRa Packets on #BL602 gets tricky ... Because SX1276 triggers a GPIO Interrupt when a packet is received ... And the Interrupt Handler needs to forward the packet to the Application Task 🤔

https://github.com/lupyuen/bl_iot_sdk/blob/lorarecv/customer_app/sdk_app_lora/sdk_app_lora/sx1276-board.c#L304-L359

Let's use this #WisBlock sample app to transmit #LoRa Packets

https://github.com/RAKWireless/WisBlock/blob/master/examples/communications/LoRa/LoRaP2P/LoRaP2P_TX/LoRaP2P_TX.ino

Now we Transmit #LoRa Packets ... From RAKwireless #WisBlock ... To #PineCone #RISCV #BL602 @PINE64

https://lupyuen.github.io/articles/wisblock#whats-next

#LoRaWAN Parameters in Apache #Mynewt OS ... We shall port the LoRaWAN Driver from Mynewt to #BL602

https://github.com/apache/mynewt-core/blob/master/net/lora/node/syscfg.yml

#LoRaWAN Packet Encryption

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

What's inside a #LoRaWAN Packet

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

Each #LoRaWAN Packet transmitted by a device is followed by 1 or 2 Receive Windows ... LoRaWAN Specs are surprisingly readable! 👍

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

#LoRaWAN Devices are either Class A, B or C

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/

#LoRaWAN Technical Overview

https://lora-alliance.org/resource_hub/lorawan-104-specification-package/