PIC16FI/SL Microchip Technology 8-bit Microcontrollers – MCU 7KB RAM 12 I/O datasheet, inventory, & pricing. This part can be programmed by Digi-Key; for details please contact our custom department at x or @ 11 Oct PIC16F is a pin flash-based, 8-bit microcontroller. It can be obtained in different packages, but the DIP (Dual In-line Package) version is.

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PIC16F – Microcontrollers and Processors – Microcontrollers and Processors

Each of the pin can be selected as input or output by setting or clearing the corresponding bit in the TRISC register. A bidirectional port is one that can act as either an input port, to receive information from external circuitry, or an output port, to give information to external circuitry. Thank you very much for the wonderfull project.

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Please if there is a link that I can download this drivers please help me out by sending the link to e-mail. A resistor divider network is used at the input end to map the range of input voltage to the ADC input voltage range V.

Festine July 12, 6: In order to use these pins as digital inputs, the comparators must be turned OFF. The voltage to be measured is fed to one of the 8 analog channels.


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The DVM is tested for various input voltages ranging from V and found to be very accurate.

The mode of operation of each pin is selected by initializing various control registers inside the chip. By continuing to use the site, you agree to the use of cookies. Can you please give the hex file, without changing the resistors for 30 Volt?.

Therefore, the user must ensure the bits in the TRISA register are maintained set when using them as analog inputs.

PIC16F688 Digital Voltmeter

Leave a Reply Cancel reply. The technique is demonstrated for input voltage ranging from V, but it can be extended further with proper selection of resistors and doing the math described below.

This site uses Akismet to reduce spam. I have been trying to install microC pro suite and microC compiler on my windows 8 system but I found out that the software does not have drivers for windows 8. PORTA is a 6-bit wide, bidirectional port. Some snapshots of the testing are here.


The circuit diagram and the prototype built on a breadboard are shown below. If you continue to use this website without changing your cookie settings or you click “Accept” below then you are consenting to this. How I measure 30 Volt in this meter… Its show maximum The cookie settings on this website are set to “allow cookies” to give you the best browsing experience possible.

Learn how your comment data is processed. I measured R1 and R2, and their values are and Ohms. Similarly, the PIC16F port pins that are multiplexed with ADC channel inputs are also configured as analog inputs on a power-on reset.

This project describes how to make pi16f688 digital voltmeter using a PIC microcontroller. I thank you all for this piece of materials that you have been able to put together to help students who are interested in learning how to work with Pic microcontrollers. PIC16F is a pin flash-based, 8-bit microcontroller.

Since the PIC port cannot take 20V input directly, the input voltage is scaled down using a simple resistor divider network.