# STM32_PLC

**Repository Path**: myflash_ffc5/stm32_plc

## Basic Information

- **Project Name**: STM32_PLC
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: add-license-1
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 3
- **Created**: 2024-04-26
- **Last Updated**: 2024-04-26

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# STM32 PLC

![a](https://raw.githubusercontent.com/DanielMartensson/STM32-PLC/main/Documentation/Pinmap.png)

This project is a PCB bord that has the following measurement and control input/output:

 * 12 x ADC at 16-bit resolution for 0-20mA input with programmable gain
 * 5 x Differential ADC at 16-bit for 0-20mA input with programmable gain
 * 3 x DAC at 12-bit with 0-20mA output
 * 8 x PWM for 0-2.2A with N-channel MOSFET
 * 10 x Digital Input
 * 1 x CAN-bus channel
 * 4 x Input Capture for 0 kHz to 10kHz
 * 3 x Encoder for -32768 to 32767 pulses
 * 1 x USB port for connecting with [OpenSourceLogger](https://github.com/DanielMartensson/OpenSourceLogger)
 * 1 x SPI with 3 chip select for ILI9341 LCD with touch
 * 1 x ST-Link V2 connection
 * 1 x RTC clock with two alarms A(date) and B(week day) and a battery holder so the RTC remembers the date and time

## Protection 
 * All ADC, Digital Input, Differential ADC, Input Capture and Encoder are high voltage protected with PTC(fall current 30mA) fuse + 3.6v zener diode.
 * All PWM and DAC are high voltage protected with N-channel MOSFET and PNP-transistor and OP-amp. 
 * The CAN-bus channel is high voltage peak protected for 3000V under a short time with a TVS-diode. The CAN-bus transmitter itself can hold against -14V to +14V, but the TVS-diode has a limit around 6V. 

## Documentation
The documentation for the pin map can be found in the `Documentation` folder. Also all the article numbers for each component can be found in at the `DAC ADC PWM IO.sch` file in the `PCB` folder. Just double click on a PCB symbol and see the `Mouser Electronics` article number of the electrical component. 

## Calibration
Yes, it's possible to set the calibration to each input in this project. You need to have the ILI9341 touch LCD with SPI bus. Open the `STM32 PLC Pinouts.pdf` and see the connection for the LCD. You can also set the PWM frequency and analog input gain for the ADC and Differential ADC at 16-bit. 

## SAE J1939
The STM32 PLC has internal SAE J1939 protocol. Made from [Open-SAE-J1939](https://github.com/DanielMartensson/Open-SAE-J1939).

## OpenSourceLogger
This is a QT C++ software that you can connect to your STM32 PLC board via the USB and then you can send signals from OpenSourceLogger and recieve signals.
OpenSourceLogger is a very easy to use logging and controlling software and it stores data at a SQL server. 

## Program 
The STM32 PLC has a lot of functions you can select by touching the LCD. 

 * A:Show measurement and time
 * B:Set analog gain
 * C:Set PWM frequencies
 * D:Set analog input calibration
 * E:Set pulses per encoder revolution
 * F:Set date and time and alarm
 * G:Do a PGN request
 * H:Show ECU addresses
 * I:Commanded address
 * J:Show this ECU DM1 codes
 * K:Show other ECU DM1 codes
 * L:Show this ECU DM2 codes
 * M:Show other ECU DM2 codes
 * N:Show this ECU name
 * O:Show other ECU name
 * P:Show this ECU identifications
 * Q:Show other ECU identifications
 * R:SAE J1939 Auxiliary valve command
 * S:Analog in to PWM
 * T:Analog in to analog out
 * U:About STM32 PLC

## How to build this STM32 PLC

 1. Download this repository
 2. Download & Install KiCad
 3. Open the `PCB` folder and open the `.pro` file with KiCAD and greate a `gerber` file of your own choice
 4. Go to your PCB manufacturer and give them the `gerber` file and let them produce the board for you
 5. Order the eletrical components from `Mouser Electronics`
 6. Once you have the eletrical components and your PCB board, it's time to solder them.
 7. Once the PCB board is finished, then install STM32CubeIDE
 8. Open the `Code` project and import the `.ioc` project file using STM32CubeIDE
 9. Flash the board with the `C` code by using ST-Link V2 connection
 10. Connect the ILI9431 touch LCD and then you are done!

## Software used

 * KiCAD: 5.1.10
 * STM32CubeIDE 1.9.0

## Status of the project
It's done. I don't plan to update this project. Everything is working and it will remain that way.