Table of Contents

1. About The Project
   • Built With
2. Getting Started
3. Web Page
4. Roadmap
5. License
6. Contact
7. Acknowledgements
8. ISO 11446
9. Pin Definitions

About The Project

This covers a wireless 13-pin Car Connector Tester using BlueTooth Low Energy Link (BLE)

You insert a plug in the cars connector and this power a wireless transmitter that you can connect to from you mobile phone The plug powers up the BLE link from the permanent +12V from the plug

You can then see the status on all pins via the user interface on your phone without a cable out of the door.

The Tester will have different modes:

• Mode 1: A graphical representation of the Connector where each pin lights up when 12V og GND is connected
• Mode 2: A Table list structured in groups (ie. Blink Left, Blink Right near to each other
• Mode 3: A latching mode - So the that has been tested stays on
• Mode 4: FUTURE: Connection to CAN bus so that the tester and initiate each test by itself

😄

Built With

The code is build with Arduino which supports the ESP32 modules

• Arduiono IDE 2.3.3

• Choose the module: "ESP32C3 Dev Module" for the ESP32-C3-Super-Mini module in Arduino IDE

Getting Started

I'm using the ESP32 Board called "ESP32-C3-Super-Mini". This board have both Wi-Fi and Bluetooth 5

• Link to a Danish Webshop The ESP32 C3 Super Mini is a low power and small outline of the bigger ESP32-C3 board.

This is the pin numbers and definitions that can be used with Arduino:

static const uint8_t TX = 21;

static const uint8_t RX = 20;

static const uint8_t SDA = 8;

static const uint8_t SCL = 9;

static const uint8_t SS = 7;

static const uint8_t MOSI = 6;

static const uint8_t MISO = 5;

static const uint8_t SCK = 4;

static const uint8_t A0 = 0;

static const uint8_t A1 = 1;

static const uint8_t A2 = 2;

static const uint8_t A3 = 3;

static const uint8_t A4 = 4;

static const uint8_t A5 = 5;

Webpage

The web part (index.html+css fille) file can be shown here within this Gitbub repository acting as a webserver:

Roadmap

See the open issues for a list of proposed features (and known issues).

License

Distributed under the MIT License. See LICENSE for more information.

Contact

Henrik Johansen Koch - @henrikjkoch - [email protected]

Project Link: [[https://github.com/KOCH-Engineering/PinPoint_BLE/] This!

Acknowledgements

• Github
• Arduino
• Link to BLE Code Examples
• Link to how to use iOS
• Another article on iOS BLE
• Hackaday article about BLE
• something about ESP32-C3-Mini Expansion board
• Serial debug problems - maybe a solution

#Standards

ISO 11446

13 pin Car Connector - 12V

• Link to the ISO 11446 standard ISO 11446:2004 specifies a 13-pole electrical connector between towing and towed vehicles with 12 volt electrical system. It was developed in 1987 by Erich Jaeger to replace older 7-pin plugs.

ISO 12098

15 pin Truck Connector - 24V

CAN

CAN bus-compatible controllers is called TWAI, which stands for Two-Wire Automotive Interface.

ISO 11898-1 protocol (CAN Specification 2.0)

TJA1050 High-Speed CAN Transceiver (datasheet)

• TWAI controller

Pin Definitions

Pin 1 Left indicator [Blink Venstre]

Pin 2 Rear fog lamp [Tågelys bag]

Pin 3 Ground [a]Stel

Pin 4 Right indicatorBlink Højre

Pin 5 Right tail lamp [b]Højre baglys

Pin 6 Brake lampBremselys

Pin 7 Left tail lamp[b]

Pin 8 Reverse lamp

Pin 9 Permanent power

Pin 10 Switched supply (for fridge)

Pin 11 Ground for pin 10 [a]

Pin 12 Trailer Presence Detection[c]

Pin 13 Ground for pin 9 [a]