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"Pit Boss" grill temperature probe
Trying to use one of these to measure temperature, but having no luck. It doesn't behave like a K type, or a J type thermocouple. Wonder if it's actually an LM35 or somesuch. It...
Thu. Jan 31, 2019 - 07:29 PM
Thermocouple amplifier always gives same output
I have 2 of Adafruit's analog thermocouple amplifiers:   Analog Output K-Type Thermocouple Amplifier - AD8495 Breakout   and 2 thermocouples.   Though I have one in...
Wed. Jan 23, 2019 - 09:59 PM
ili9341 suspicious looking library code
I can't seem to draw anything below z=255 using this library and I suspect this bit of code:   void ili9341_setaddress(uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2)//set...
Mon. Jan 14, 2019 - 09:50 PM
I think my integrated motor driver chip shorted.
My train controller is a short circuit from + to -. The H-bridge, VNH5019A, seems to be a short. It was rated for 5 amps, the battery shuts down at 7 amps and there's a 5A fuse. I...
Wed. Aug 15, 2018 - 08:05 PM
24vac valves and motors
I just looked at a contraption with 24v AC motors and solenoids controlled by relays. As expected, it goes mildly haywire when he turns one of these motors on or off. If it was DC...
Thu. Feb 1, 2018 - 07:25 PM
LM2840 CBoot capacitor
Searching the data sheet, I don't find anything about the voltage needed for the CBoot capacitor.     I design train related things for 10 to 30 volt input. ...
Thu. Nov 9, 2017 - 10:51 PM
Mega328 timer 2 interrupt
As soon as I set the TIMSK to enable timer 2 interrupt, my program stops working, so obviously, I've overlooked something:   Setup routine: void setup() { pinMode(...
Mon. Jul 3, 2017 - 03:59 PM
Can't debug my Arduino Nano with Studio 7
Eek!   I imported and built my sketch. Programmed the arduino using my Atmel ICE. Of course the program isn't working, that's why I'm trying to debug.     But when...
Mon. Jul 3, 2017 - 02:55 PM
Funny how that works....
Working on an Arduino project for a magazine article. Was just about working right, and I decided to make a small change in the program. Now it's completely doing nothing like it'...
Sun. Mar 19, 2017 - 09:16 PM
"High" is half a volt?
I've been using some TSOP2438 infrared receivers to detect trains and the like blocking flashing IR LEDs for quite a while now, but I've been stuck for several days on a project...
Mon. Feb 20, 2017 - 08:57 PM
Installing on another computer. Yet another computer.
Trying to install Studio on yet another replacement computer, but it keeps asking me over and over again if I really want to install   Atmel Corp. Ports (COM&LPT) Jungo...
Sun. Jan 22, 2017 - 04:18 PM
PR0 and PR1
In a battery system where you don't want to leave inputs floating, what do you do with PR0 and PR1 if you're not using a crystal? I've just always ignored them, but I wonder if...
Fri. Jan 6, 2017 - 04:21 PM

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