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Update system architecture block diagram in README to reflect Banana Pi M2 Nano

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Lucien Renaud
2026-05-25 18:04:50 +02:00
parent 38f51b3eb6
commit 4354debe98
1 changed files with 3 additions and 3 deletions
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README.md
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@@ -16,7 +16,7 @@ An integrated Android Auto retrofit system for the retracting Volvo Road and Tra
## 🛠️ System Architecture
The retrofit consists of three key layers working in unison: **vehicle bus integration (LIN)**, **screen power/command control (RTI Serial)**, and the **core computer (Raspberry Pi 4)**.
The retrofit consists of three key layers working in unison: **vehicle bus integration (LIN)**, **screen power/command control (RTI Serial)**, and the **core computer (Banana Pi M2 Nano)**.
```mermaid
graph TD
@@ -25,10 +25,10 @@ graph TD
CEM[Central Electronic Module - LIN] -- "LIN Keep-Alive Ping" --> ATtiny
%% ATtiny Processing
ATtiny -- "RC-6 MCE IR Protocol (Bit-banged)" --> Pi_IR[Raspberry Pi GPIO 24 / IR Input]
ATtiny -- "RC-6 MCE IR Protocol (Bit-banged)" --> Pi_IR[Banana Pi GPIO / IR Input]
%% Pi Processing
subgraph Raspberry Pi 4 [Raspberry Pi 4 - LineageOS]
subgraph Banana Pi M2 Nano [Banana Pi M2 Nano - LineageOS]
Pi_IR --> KM[KeyMapper / Input Dispatcher]
KM -- "Volume Up Trigger > 5s LIN Idle" --> SD[OS Shutdown Command]
Hotspot[Init Services] -- "Auto-start on Boot" --> AP[Wi-Fi AP: VolvoC70_AndroidAuto]