bigjosh’s gists

bigjosh / NoPartsBatteryGauge.c

Last active April 7, 2022 09:51

Sample code for a no parts, no pins, no power supply voltage detection on ATTINY84

	/*
	* NoPartsBatteryGuageAVR.c
	*
	* This is a simplified demonstration of how to detect power supply voltage by using the on chip
	* analog-to-digital converter to measure the voltage of the internal band-gap reference voltage.
	*
	* The code will read the current power supply voltage, and then blink an LED attached to pin 6 (PA7).
	*
	* 1 blink = 1 volts <= Vcc < 2 volts (only applicable on low voltage parts like ATTINY84AV)
	* 2 blinks = 2 volts <= Vcc < 3 volts

bigjosh / gist:358964bad63c53684612

Last active August 29, 2015 14:08

TyTower LED Blink Code

	// RGB_Tiny Board Testing for Common Anode Rgb Leds
	// with LOW it lgiths up the led and with HIGH it lights off because its INVERTED due to common anode rgb led
	/*.
	ATTiny85 Pinout
	(PCINT5/!RESET//ADC0/dW)PB5 -1 8- VCC
	(PCINT3/XTAL1/CLK1/!OC1B/ADC3)PB3 -2 7- PB2(SCK/USCK/SCL/ADC1/T0/INT0/PCINT2)
	(PCINT4/XTAL2/CLK0/OC1B/ADC2)PB4 -3 6- PB1(MISO/D0/AIN1/OC0B/OC1A/PCINT1)
	GND -4 5- PB0(MOSI/D1/SDA/AIN0/OC0A/!OC1A/AREF/PCINT0)
	*/

bigjosh / gist:41dec494662dd7b3e3bf

Created February 23, 2015 18:07

Check analog input value

	int sensorPin = A0; // select the input pin for the potentiometer
	int sensorValue = 0; // variable to store the value coming from the sensor

	void setup() {
	Serial.begin(9600);
	while (!Serial) {
	; // wait for serial port to connect. Needed for Leonardo only
	}}

	void loop() {

bigjosh / iBitTest.s

Created January 8, 2016 21:00

Test different wasy of setting the I bit in SREG on AVR

	; Test if instruction after I bit in SREG is set is always run
	; More info at http://wp.josh.com/2016/01/05/different-ways-to-set-i-bit-in-avr-sreg-besides-sei/

	jmp start // Reset vector

	.org INT0addr

	INT0_handler:

	loop1:

bigjosh / log.prop

Created January 25, 2016 17:10

A sample log properties file for running the Engine821 server with logging handled by JDK1.4 logging package and writing to local files

	andlers=java.util.logging.FileHandler, java.util.logging.ConsoleHandler
	java.util.logging.ConsoleHandler.level=ALL
	java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter

	java.util.logging.FileHandler.level=ALL
	java.util.logging.FileHandler.pattern=e821server.log

	# Write 10MB before rotating this file
	java.util.logging.FileHandler.limit=10000000

bigjosh / OPMLog.log

Created February 24, 2016 22:34

Log file showing Outlook 2016 new version POP3 bug. See http://wp.josh.com/2016/02/24/outlook-2016s-buggy-pop3/ for details.



	2016.02.24 13:01:18 <<<< Logging Started (level is LTF_TRACE) >>>>
	2016.02.24 13:01:18 Resource manager terminated


	2016.02.24 13:40:00 <<<< Logging Started (level is LTF_TRACE) >>>>
	2016.02.24 13:40:00 [email protected]: Synch operation started (flags = 00000001)
	2016.02.24 13:40:00 [email protected]: UploadItems: 0 messages to send
	2016.02.24 13:40:00 [email protected]: Synch operation completed

bigjosh / TimerShotTimer1A.ino

Last active April 13, 2018 22:13

Code to generate a one-shot pulse on AVR Timer1A by Nevell Greenough, N2GX. More info about this program is here... http://wp.josh.com/2015/03/05/the-perfect-pulse-some-tricks-for-generating-precise-one-shots-on-avr8/

	// ************** TimerShot for Timer 1A *******************
	// More info about this program is here...
	// http://wp.josh.com/2015/03/05/the-perfect-pulse-some-tricks-for-generating-precise-one-shots-on-avr8/

	// Demo of a technique to generate various precise one shot pulses using
	// timer 1 module on an AVR. This demo code version is writen for an Arduino Uno or Mega2560 for the
	// the Timer1 moudule, but this technique should would on other 16-bit AVR timers on Mega2560.
	// Original code by Josh Levine, hack by N2GX 8/30/2016.

	// Long-pulse working solution for TIMER 1A One-Shot, edited from Josh's Timer2 code and a partial Timer3 solution

bigjosh / TimerShotTimer1B.ino

Created September 1, 2016 02:42

Code to generate a one-shot pulse on AVR Timer1B by Nevell Greenough, N2GX. More info about this program is here... http://wp.josh.com/2015/03/05/the-perfect-pulse-some-tricks-for-generating-precise-one-shots-on-avr8/

	// ************** TimerShot for Timer 1B *******************
	// More info about this program is here...
	// http://wp.josh.com/2015/03/05/the-perfect-pulse-some-tricks-for-generating-precise-one-shots-on-avr8/

	// Demo of a technique to generate various precise one shot pulses using
	// timer 1 module on an AVR. This demo code version is writen for an Arduino Uno or Mega2560 for the
	// the Timer1 moudule, but this technique should would on other 16-bit AVR timers on Mega2560.
	// Original code by Josh Levine, hack by N2GX 8/30/2016.

	// Long-pulse working solution for TIMER 1B One-Shot, edited from Josh's Timer2 code and a partial Timer3 solution

bigjosh / BBB iw list output

Created September 4, 2016 13:29

bigjosh / main.c

Last active May 13, 2018 21:19

PWM Motor control code for AIRBOAT running on ATTINY10

	/*
	* Attiny10 AIRBOAT PWM Motor control code
	*
	* Created: 12/2/2016 6:17:47 PM
	* Author : josh
	*/

	#include <avr/io.h>
	#include <util/delay.h>

Josh Levine bigjosh