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Discussion Title Created date
makeup of a pointer
This is just to satisfy my curiosity -- feel free to move it to a more appreopeiate section.   I have been trying to visualize what information is in a pointer itself --i.e....
Sunday, 1 July 2018 - 02:19
mail notification revisited
Hi, I started this topic earlier and I am still looking for some help. The objective is to have something notify me when mail is received. My mailbox is around 250 feet (yes feet...
Friday, 22 June 2018 - 17:07
Pleasantly surprised
Hi, Quite a few years ago, I had the pleasure of attending a seminar on EMI/ESD etc given by Henry Ott PhD. At the time he may have still worked for Bell Labs ( or AT&T, I...
Monday, 19 February 2018 - 05:31
Bad 328P?
I'm trying to upload an Arduino program to a 328P using a Sparkfun USBTinty -- it's worked for me before as has this chip.   I'm pretty certain that the chip is bad, but I...
Sunday, 4 February 2018 - 02:48
Looking for OBD2 connector power tap
Hi,   I'd like to tap the 12v from an OBD2 connector -- while there's something else plugged in. I want to use  the power for my battery/charger monitor because it's...
Monday, 29 January 2018 - 02:43
would like some suggestions
Hi, I'd like to make a 'mail alert ' rf system ( for snailmail). My mailbox is 250+ ft from the house, and on cold days I don't like to venture up there until I have to. On the...
Wednesday, 17 January 2018 - 20:06
auto voltage protection
Hi,   I'm still working on my battery monitor ( hey , it functions!), and I want to clarify a small point.   I'm sure that I've read on the Freaks forum, that schottky...
Sunday, 22 October 2017 - 04:25
comparing time from another source
Hi,   I've been looking at the time options in time.h, and they seem to be somewhat limited.  What I want to do is get a timedate value from a file or whatever and...
Sunday, 15 October 2017 - 02:14
5v from auto power
Hi,   I'm working on a battery monitor (for my use only :) ) and I want a good source of 5v so as not to fry the 328(!), and probably as a reasonable erference for the A/D....
Monday, 9 October 2017 - 01:31
Using the same Voltage source for power and a/d- AVR
Hi,   I'm working on an eons long project to make a battery monitor for cars.  I'm planning on checking the voltage frequentyl when starting and less often after that....
Sunday, 23 April 2017 - 04:39
Works in main -- not as a function SOLVED
Hi, This is Pelles C code that runs on a PC. If it would be better in off topic please move this post.   Here's the problem. I have a fairly simple bit of code to make a...
Sunday, 26 March 2017 - 05:03
TXB0104 output pins
Hi,   I'm trying to build a data logger with the Sparkfun SD breakout. They use a TXB0104 as a level translator to 3.3 v.   My question is about the output pins. I'm...
Saturday, 11 March 2017 - 02:04

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