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Lup Yuen Lee 李立源

Packet: vs ... Seems BL602 is transmitting at Lower Power than WisBlock ... Let's check the Power Amplifier settings 🤔

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

vs : Join Network Request ... Let's check the Nonce and Message Integrity Code ... Wonder if we can retransmit the BL602 packet from WisBlock 🤔

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

Let's copy the Join Network Request generated by ... And retransmit with ... Surprise: the Join Request succeeds! 😲 Which proves the Nonce and Message Integrity Code are OK ... Probably the BL602 Power Amplifier setting is wrong 🤔

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

But wait: Will allow replayed "Join Network" Requests? 😲 Nope it doesn't! will reject Replayed Requests because the Nonce needs to be unique ... Here's how we find Nonce Errors in RAKwireless WisGate

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

For Reference: Here's how I connected @PINE64 to Pine64 RFM90 Module (SX1262)

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

Taking a short BL602 break ... To write about everything I've done with

docs.rakwireless.com/Product-C

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Lup Yuen Lee 李立源

Gateway receives LoRaWAN Data Packet from yay! 🎉

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

We should always select "Public LoRa Network" (instead of Private) ... So that our Driver will transmit Public Sync Word 0x3444 (instead of 0x1424) ... Duh! 🙄

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

Here are the tested Commands for to transmit data packets correctly to the WisGate ChirpStack LoRaWAN Gateway 🎉

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

Concentrator Doc made me wonder ... Could our Gateway be dropping packets from because we sent the wrong Sync Word? Yep indeed!

github.com/Lora-net/sx1302_hal

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Lup Yuen Lee 李立源

joins the Network ... And transmits a data packet

youtu.be/BMMIIiZG6G0

1
Lup Yuen Lee 李立源

transmits a packet to Gateway and receives the response ... Why is BL602 transmitting at Lower Power, when the Power Amplifier is enabled? 🤔

github.com/lupyuen/bl_iot_sdk/

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Lup Yuen Lee 李立源

Connecting @PINE64 to ... With Pine64 RFM90 LoRa Module ... All shall be explained here

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

Here's how we connect @PINE64 to Pine64 RFM90 Module

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Magical Pin DIO1 on RFM90 Module @PINE64

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

Let's dive into the Drivers for and

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

SX1262 Driver for ... How it works

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

What's inside the Driver

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

handles these parameters automatically ... But if we ever need to call the LoRa Driver directly, here are the parameters

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

How we init the Driver for SX1262 / RFM90

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

How we Transmit Packets with the Driver for SX1262 / RFM90

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

Receiving a Packet with Driver for SX1262 / RFM90 ... Which will become simpler with LoRaWAN

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Driver has Layers ... Like Onions and Shrek 😂

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Driver sends Join Network Request ... Durian not included 😂

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

How our Driver handles the Join Network Response

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

How our Driver opens an Application Port

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

How our Driver transmits data packets

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Here's how we Build and Flash the Firmware for

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

How we run the Firmware ... To join a network and send a data packet

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Here's how we troubleshoot issues

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

with RFM90 seems to be transmitting with Lower Power ... Would be great if you could help me understand why 🙏

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Why the Sync Word matters for our Driver

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

3 Stacks ... 3 different implementations of Carrier Sensing ... My apologies to Fans in Japan and South Korea 🙏

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

AS923 Region Settings look different across the 3 LoRaWAN Stacks 🤔

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

How our Driver uses Packet Buffers from the Lightweight IP Stack (LWIP)

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源

Packet Buffer Queues in our Driver

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

How our Driver calls the BL602 SPI Hardware Abstraction Layer

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

RFM90 / SX1262 triggers a GPIO Interrupt when it receives a Packet ... Here's how handles the GPIO Interrupt

lupyuen.github.io/articles/lor

1
Lup Yuen Lee 李立源

Can't wait to connect to our new Gateway @ThePine64! ... Stay tuned for fun adventures with Lisp and Scratch on BL602

lupyuen.github.io/articles/lor

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Lup Yuen Lee 李立源
Follow

Here's how we connect Board to ... With @PINE64 RFM90 LoRa Module

lupyuen.github.io/articles/lor

· · Tusky · 1 · 0 · 0
Lup Yuen Lee 李立源

Great to see a growing community for + 👍

reddit.com/r/PINE64official/co

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