Tiny PIC boards for fast projects? - Page 1
Forum section: electronics / general

author: mobbarley
author_rank: Regular Contributor
timestamp: March 23, 2011, 12:24:50 pm
content: Hi all,I'm sensing a one off project coming up and might need to produce ~30 small pic boards.Does anyone know of any really small and simple PIC boards on the market for this sort of quick project? I did a nights worth of googling and could find anything.Ideally i'd like a small professional board with a 16F or 18F, oscillator, regulator, ICSP header and a tiny bit of proto area - but I need the board to be a small as possible. Surely these exist...

author: Simon
author_rank: Unknown
timestamp: March 23, 2011, 12:44:34 pm
content: why not layout your own PCB and get it made up ? where are you located ?

author: mobbarley
author_rank: Regular Contributor
timestamp: March 23, 2011, 12:53:40 pm
content: Designing boards isn't a problem - the problem is that I don't want to have to send away for boards, wait and then build them when they come. A premade board would be ideal so that I can just pop on a couple of resistors and terminal blocks for my interface (about 4-5 IO pins), program and my tiny data converter is done.

author: mobbarley
author_rank: Regular Contributor
timestamp: March 23, 2011, 12:57:13 pm
content: Quote from: PeDre on March 23, 2011, 12:32:35 pmThis was my first choice because I like its size and have used Mikroe's products before. However I don't need USB or bootloader (no big deal) and it unfortunately still requires a vreg, cap, and a few air wires to connect it up. Still - it is the best professional looking option so far.

author: Jon Chandler
author_rank: Frequent Contributor
timestamp: March 23, 2011, 01:16:14 pm
content: Would my TAP-28 board fit your needs? It supports most 28 pin PIC parts and has dedicated connectors for ICSP, UART I2C/SPI (each of these 6 pin connectors has power, ground and 4 data lines that can be used for the hardware function or for general purpose use), 2 3-pin connectors with power, ground and a PWM-capable port pin and 2 3-pin connectors with power, ground and an ADC/general purpose port pin.There is no on-board prototype area but many of the lines on the 6-pin connectors have provision for a pullup resistor and the 3-pin connectors has provision for a pullup or pull-down resistor. There's also provision for a row of parallel headers for a daughter board the connects to all the port pins. Depending on how complex your add-ons are, it may be possible to solder the needed parts directly to the header locations or to use a small piece of perf board to add the parts.For a quantity, I'll definitely give you an awesome priceFor more details, check out theweb page.

author: mobbarley
author_rank: Regular Contributor
timestamp: March 23, 2011, 01:33:16 pm
content: I did find your board in my googling! Let me look into it tomorrow!Thanks,John.

author: Hopasaurus
author_rank: Newbie
timestamp: March 29, 2011, 12:48:35 am
content: I have a some that host a 12f675, using onboard clock, the only thing on the board besides the pic is a FET, resistor and a few caps. I have a .5" x .75" version and a .75" x 1" version. Dimensions are approximate. The pins for iscp are there, but get used if you hook anything up so don't plan on reprogramming. I can send a jig with the boards, I use one of the boards to make the jig with some springy pins.If you think it might work, I will put up some pictures. I do realize that I am missing some of your specs, but you said you wanted really small and thought you may be able to be flexible to get a smaller board.Have a great day!David H