How to read from the ADC port?

[Lac]

I'm currently building a cooling system where im planing to use a thermistor connected to a MC ADC-port, im familiar with the hardware and general coding, but the commands to read from the ADC port and how to use the data read, are unknow to me. Any help would be appriciated. Links too.

thanks in advance.

 

[Nigel Goodwin]

I'm currently building a cooling system where im planing to use a thermistor connected to a MC ADC-port, im familiar with the hardware and general coding, but the commands to read from the ADC port and how to use the data read, are unknow to me. Any help would be appriciated. Links too.

It's not very clear what type of processor you are refering to?. Assuming MC means MicroChip?, my tutorials explain how to do it.

 

[Lac]

jupp. im talking about the PIC16F628 microcontroller

 

[Nigel Goodwin]

jupp. im talking about the PIC16F628 microcontroller

The 628 doesn't have an A2D converter, you should use the 16F819 instead!.

 

[ishank thandi]

hi
i got ur PICtutorials.SUPPOSE i want run the LCD then how can i do programm on that i mean to say that what will be the required programm for that.reply im on line.

 

[akg]

that's in his tutorials

 

[mramos1]

You can fake the ADC on the 628 if you already have that chip.

See Nigel's joystick tutorial.

Use a cap to ground and the thermistor to VCC, connect the other two ends together and to a pin on the uC. Ground the pin (make that pin an output), then flip it to an input and read it in a loop. The number of highs will give you a value for the current temp (how long the cap took to charge).


Sounds cheap but it works.