The Luna Mod Looper is my favourite project lately, so I am porting it to this platform. This time, I am using a 16F684 whereas before, I used a Basic Stamp 2 (and an Arduino also but I did not develop it very much with that mcu). With the BS2, I used the Parallax PDB for the first prototype and then later used a Basic Stamp 2 Stack and placed it in a semi-permanent housing, which is still in use.
With this project, I am adding a 2 x 16 LCD. Every IO pin is used here and I came across a programming problem that prevents me from programming the IC on a solderless breadboard. I have a pot connected to RA0 (ICSPDAT) on the 16F684 but it, at the moment has to be disconnected to program the IC. Now that I look at the PICKit 1 schematics, p31, I see that they are using a pot-voltage divider but with a capacitor and resistor in addition. I will have to try that to see if it will work for me.
The Luna Mod Looper is my favourite project lately, so I am porting it to this platform. This time, I am using a 16F684 whereas before, I used a Basic Stamp 2 (and an Arduino also but I did not develop it very much with that mcu). With the BS2, I used the Parallax PDB for the first prototype and then later used a Basic Stamp 2 Stack and placed it in a semi-permanent housing, which is still in use.
With this project, I am adding a 2 x 16 LCD. Every IO pin is used here and I came across a programming problem that prevents me from programming the IC on a solderless breadboard. I have a pot connected to RA0 (ICSPDAT) on the 16F684 but it, at the moment has to be disconnected to program the IC. Now that I look at the PICKit 1 schematics, p31, I see that they are using a pot-voltage divider but with a capacitor and resistor in addition. I will have to try that to see if it will work for me.
Here are the project links:
http://www.instructables.com/id/Luna-Mod-Looper-Basic-Stamp2-Version/
https://www.youtube.com/watch?v=tHt-4m3OATc
There are 4 videos linked in the Instructable.
The extra capacitor and resistor solvced the problem! See PICKit 1 User Guide, p31, on IO pin RA0.