parts:
- ATtiny2313 @4MHz (internal oscillator)
- IR LED (series with 220-ohm resistor)
- Tact switches
- 3.7V lithium ion battery & Capacitor
avr-gcc (main.c) code:
References:
ESP8266 IR Remote
z3t0/Arduino-IRremote
ATtiny Low Power
Showing posts with label Atmel mcu. Show all posts
Showing posts with label Atmel mcu. Show all posts
Saturday, May 6, 2017
ATtiny IR Remote
ATtiny2313 Infrared Sender
parts:
avr-gcc (main.c) code:
References:
ESP8266 IR Remote
z3t0/Arduino-IRremote
ATtiny Low Power
parts:
avr-gcc (main.c) code:
References:
ESP8266 IR Remote
z3t0/Arduino-IRremote
ATtiny Low Power
Sunday, November 30, 2014
Monday, October 28, 2013
AVR32 GCC IDE
AVR32 IDE (C/C++)
- uses AVR32 GNU toolchain
- requires FLIP 3 for uart bootloading
- tested only on eGizmo AVR32 mcu board (AT32UC3L0128)
svn repo source:
svn co http://yus-repo.googlecode.com/svn/trunk/AVR32/avr32-ide
forum link: AVR32 GCC IDE
.
Thursday, February 3, 2011
MARG sensors + Bluetooth
MARG (Magnetic, Angular Rate, and Gravity) sensor array used for AHRS (Attitude and Heading Reference Systems).
Using ATmega328P, operated at 3.3V supply and 8MHz crystal. At this speed, reading sensors' measurements and computing "AHRSupdate" take about 31ms to complete. Default compiler setting is used on WinAVR. With 25Hz sampling rate, this leaves mega328p extra 9ms to do other tasks. Bluetooth SPP (serial) communication is buffered and interrupt driven, so no processing time is wasted in reading and sending data to the android phone.
References:
(1) Sebastian Madgwick's Alternative AHRS (MARG) algorithm - Quaternion implementation of Mayhony's DCM filter incorporating magnetic distortion compensation.
(2) Fabio Varesano's FreeIMU. Also using Madgwick's implementation of the DCM filter on Arduino platform.
(3) Rotation convertions by Martin Baker. Very good discussion on quaternions and other 3D representation like Euler angles and transformation matrix.
(4) OpenGL Transformation Matrix by Song Ho Ahn
(5) Similar discusion on diydrones.com started by Harinath
Android project examples:
Android Bluetooth
Bluetooth Chat
Android OpenGL Projects
OpenGL ES tutorial
Android Bluetooth Oscilloscope
Special thanks to the generous guy who gave me these toys, Thank you very much!
Android OpenGL 3D display on Samsung Spica (i5700).
Using ATmega328P, operated at 3.3V supply and 8MHz crystal. At this speed, reading sensors' measurements and computing "AHRSupdate" take about 31ms to complete. Default compiler setting is used on WinAVR. With 25Hz sampling rate, this leaves mega328p extra 9ms to do other tasks. Bluetooth SPP (serial) communication is buffered and interrupt driven, so no processing time is wasted in reading and sending data to the android phone.
References:
(1) Sebastian Madgwick's Alternative AHRS (MARG) algorithm - Quaternion implementation of Mayhony's DCM filter incorporating magnetic distortion compensation.
(2) Fabio Varesano's FreeIMU. Also using Madgwick's implementation of the DCM filter on Arduino platform.
(3) Rotation convertions by Martin Baker. Very good discussion on quaternions and other 3D representation like Euler angles and transformation matrix.
(4) OpenGL Transformation Matrix by Song Ho Ahn
(5) Similar discusion on diydrones.com started by Harinath
Android project examples:
Android Bluetooth
Bluetooth Chat
Android OpenGL Projects
OpenGL ES tutorial
Android Bluetooth Oscilloscope
Special thanks to the generous guy who gave me these toys, Thank you very much!
Wednesday, January 19, 2011
Inertial Measurement Unit + Bluetooth
Arduino plus Android
* pitch and roll only
* Arduino code by fabio (www.varesano.net)
IMU Digital 6-DOF (ITG3200/ADXL345)
Arduino FIO
* pitch and roll only
* Arduino code by fabio (www.varesano.net)
IMU Digital 6-DOF (ITG3200/ADXL345)
Arduino FIO
Subscribe to:
Posts (Atom)
