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How to engineer a PWM motor driver.
Permanent magnet DC motor with commutators.   Motor rated for a max of "i" amps continuous at max of "e" volts. Stall current is "is." Switching frequency is f. Mosfets rated...
Sunday, 19 April 2015 - 12:14
Locking connectors
  Anybody know part numbers for these?
Wednesday, 4 March 2015 - 00:53
ILI9341 TFT display controler
Anybody know if this thing has a low power shut down mode? Perhaps I should provide a PFET to turn the thing off?
Tuesday, 24 February 2015 - 22:55
C and the xMega Pin Control registers
Been thinking about this for a while, and there has to be a tidy way to do it, but I haven't figured it out yet.    I usually make a file called "Config.h" that...
Friday, 13 February 2015 - 15:18
Resistive Touch Screen -- (Solved)
I post it here 'cause I'm using an xMega192D3.   Here's my "Read the ADC" code:   uint16_t ADCread(uint8_t Channel, uint8_t ADCMode, uint8_t RefSelect ) // Mode = 1 for...
Wednesday, 11 February 2015 - 16:04
EEProm_Update_Block: Thank, you, Dean,
You are a gentleman and a scholar. I was stuck on how to get the pointers to update block right.   http://deans-avr-tutorials.googl...   I didn't mean to post this twice...
Thursday, 22 January 2015 - 20:56
Looking for an example of using the DS18S20 temperature sensor. Using google to search the freaks, I find that there were 9 related projects in the project section in 2010. Alas,...
Sunday, 11 January 2015 - 23:05
ATTiny2313 : Where'd the code go? (Solved : Boneheaded mistake.)
Tiny, stupid LED blinker program, but everything in the while loop is missing from the disassembly.   /* * Christmas2014.c * * Created: 11/2/2014 3:48:37 PM * Author:...
Tuesday, 2 December 2014 - 15:42
Calculating the chip's VCC (From hackaday.com)
Now this is clever. You can calculate VCC by using VCC as a reference to measure the 1.1v reference. VCC then is    (1.1v * 1024) / ADC   A little harder with xMega...
Sunday, 9 November 2014 - 13:55
Idiot Freak now has to fix a 555 circuit
Ok, Larry talked me into designing him a 555 "coupler trigger." He doesn't want anything surface mount or programmable. I should have told him to find an engineer 40 years older...
Wednesday, 5 November 2014 - 14:54
Studio 6.2 build 1502
Where do you find this new build? All I can find is build 1153 and I already have that.
Friday, 31 October 2014 - 21:19
Regulation Conundrum 2.8v
I've been using these nice little TPS60100 Charge pump regulators for powering things from 3v batteries for a while. You put the chip, a couple capacitors and you've got a steady...
Monday, 13 October 2014 - 13:14