Terminal is the great tool, but sometimes I want nice gui. I decided to start learning C++ Builder and made simple tool for led switching on my devboard with help RS232.
Experiment #18. Windows GUI for work with COM port.
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Category Archives: PIC microcontrollers
Experiment #17. Clock-thermometer.
So, I have experiment with thermometer based on DS18b20 and experiment with real time clock IC DS1307, and I took decision to combine it in one single device. Other reason why I did it is that I have broken china clock with good enclosure (:
Result looks something like this:
Experiment #16. One wire and DS18b20.
Goal: To get temperature data from DS18b20 sensor
What we have: PIC16f628a, DS18b20, MAX232 level converter, devboard, proteus.
There is example of working with one DS18b20 at line, and you can find some useful functions for work with 1-wire protocol.
Experiment #15. Real-time clock IC DS1307.
I’ve received some RTC ICs from aliexpress and I started investigations. Warning! Here I’m going to work only with time, not date.
Goals: Read/write time from DS1307 and pushing it to pc by uart.
What we have: PIC16f628a, DS1307, MAX232 level converter, devboard, proteus.
Experiment #14. USART module.
Lets look at USART module in pic microcontroller (uart module).
I’m going to move by two ways:
1. Using existing functions from hi-tech compiler.
2. Writing my own functions.
Experiment #13. Software I2C protocol realization.
I choose software realization of I2C protocol as the next experiment. There isn’t description of this protocol, only realization, google has a lot information of i2c 🙂
So:
Goal: To make connection between PIC16f628a and IO port expander PCA9539 by i2c
What we have: PIC16f628a, PCA9539, devboard.
Experiment #12. Work with EEPROM
Goal:Â To write and read EEPROM
What we have: PIC16f628a and simple devboard.
Microcontroller PIC16f628a has 128 bytes of EEPROM memory on board, not too much but we have what we have. Hi-tech PICC compiler has internal functions for work with EEPROM, but here I’m going to make some my personal functions.
Let’s look at the EECON1 register:
