Hi all. I was wanting to connect display speedometer and a rev gauge with a mcu (PIC16f877A) similar to what is displayed in a formula one racing wheel displayed. ferrari_2008_f1_steering_wheel.jpg So in total i would like to have around 8 7 segment displays (possibly 14 or 16 segment) to display la...

Good news everyone! Just letting you know i have got it working. After rearranging the circuit to allow programming and testing in the same circuit when connecting power the LED was blinking successfully. I made small alterations to the code (increasing the delay, and simply leaving the LED on etc.)...

I am programming separately just to simplify things while I am learning. I thought that way nothing in my led circuit would affect the programming onto the chip and nothing in my programming circuit will affect operation of the led. I will use the same location in future. Just to clarify whe program...

Please note i am programming in first circuit and then once i have programmed the chip i place it in the other circuit. So to answer your comments. Pin 1 (MCU) to pin 1 (ISCP), 10K Resistor from pin 1 (ISCP) to pin 2 (ISCPVdd) Used when programming. I followed your suggestion from the tutorial you a...

Ok my camera is not very good. I will list the connections which hopefully make it easier to follow. Programming program-circuit.jpg Pin 1 (MCU) to pin 1 (ISCP). 10K Resistor from pin 1 (ISCP) to pin 2 (ISCPVdd). 0.1uf Ceramic Capacitor from pin 11 to pin 12. Pin 11 to +5V. Pin 12 to GND. 0.1uf Cera...

Ok some good news and bad news. Good news i was able to achieve the LED blinking. Bad news i will lose the use of my left hand to keep this event occurring lol. Let me elaborate. I reprogrammed the mcu with the new circuit following the tutorial you provided. Then when attempting to test the circuit...

Make sure that you have given external power using a 7805 regulator to the micro when you are programming. Don't expect to get it powered by the USB. Can you explain a little more on this and how to use it within the circuit? Currently i was supplying 5v from external power supply to my circuit and...

Hi all. Just stumbled across this forum while searching for tutorials on beginning with mcu's (so glad i did). Hoping to learn how to program mcu's and gain a better understanding electronics to be able to build some exciting applications. ABOUT ME -- Occupation: Software Developer Education: CS Deg...

hi. i have made that change to the circuit however it is still not working. i have attached a diagram of my circuit which hopefully shows clearly what everything is connected to.

Thanks.

i have made that line change and done another build however didn't fix the problem. is there any other information i can provide to make things easier?