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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... |
Wednesday, 23 January 2019 - 21:59 |
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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... |
Monday, 14 January 2019 - 21:50 |
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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... |
Wednesday, 15 August 2018 - 20:05 |
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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... |
Thursday, 1 February 2018 - 19:25 |
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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. ... |
Thursday, 9 November 2017 - 22:51 |
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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(... |
Monday, 3 July 2017 - 15:59 |
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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... |
Monday, 3 July 2017 - 14:55 |
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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'... |
Sunday, 19 March 2017 - 21:16 |
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"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... |
Monday, 20 February 2017 - 20:57 |
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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... |
Sunday, 22 January 2017 - 16:18 |
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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... |
Friday, 6 January 2017 - 16:21 |
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Split from LM75 through hole alternative Don't be afraid of SMD. The first time I tried it with my plain soldering iron, I decided to forget DIPs. Get yourself some small Solder braid. Thread split from: ... |
Thursday, 15 December 2016 - 20:13 |