ATtiny4 External Interrupt Help This is the strangest code that I've seen in a while. I've never seen a microcontroller being run at 512Hz clock speed. Nor have I ever seen either a while(1)...
Friday, 17 April 2020 - 12:30
Connect ATmega32A with magnetic card reader DB9 This card reader appears to use the two 6-pin headers (one male, one female/ type:PS2) for power only and the DB9 female connector for RS232 data to the PC.
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Wednesday, 15 April 2020 - 18:18
ArduinoRS485.h I can not find a reference to anything called a ATMEGA328U-7H using Google Search. The ATmega328P-AU is the tiny quad flat pack version of the common mega328P processor....
Wednesday, 15 April 2020 - 17:27
AVR Studio 4 crashes when "start debugging" Well, that is a weird program. It does nothing but initialize two registers. Have you tried any other program like a blinker?: while (1) { turn on LED,...
Wednesday, 15 April 2020 - 17:07
Atmega32 PWM tone generation The PWM channel uses the duty cycle of the pulse and a capacitor to create a discrete analog voltage level. An analog waveform gets created by changing the PWM duty...
Push button latch Push buttons are surprisingly difficult to write code for. They "bounce" on the milli-Second level when pressed or released. The CPU is fast enough to treat each of these on...
RGB LED Matrix ? Do something sensible and use 64 WD2812b NeoPixel programmable LED chip modules. They will all string together. It takes about 27 microseconds to send the RGB...
In my humble opinion, this entire concept for a working clock is wrong. While yes it is possible to make a clock with these parts, it must be accepted that this is a...
This is the strangest code that I've seen in a while. I've never seen a microcontroller being run at 512Hz clock speed. Nor have I ever seen either a while(1)...
This card reader appears to use the two 6-pin headers (one male, one female/ type:PS2) for power only and the DB9 female connector for RS232 data to the PC. ...
I can not find a reference to anything called a ATMEGA328U-7H using Google Search. The ATmega328P-AU is the tiny quad flat pack version of the common mega328P processor....
Well, that is a weird program. It does nothing but initialize two registers. Have you tried any other program like a blinker?: while (1) { turn on LED,...
The PWM channel uses the duty cycle of the pulse and a capacitor to create a discrete analog voltage level. An analog waveform gets created by changing the PWM duty...
Try taking the while(1) {} out of the loop() function. Make the offset a define statement. #define OFFSET 600 void loop() { set...
Push buttons are surprisingly difficult to write code for. They "bounce" on the milli-Second level when pressed or released. The CPU is fast enough to treat each of these on...
I don't need to start my own school because the only real school that people need to go to in order to learn modern embedded-system programming doesn't exist as a...
Remove all the references to a LM35 or a Light_dependent resistor. The "code spec" just says "control an LED's brightness using PWM". It doesn't say anything about...
I recommend that you use the One-Wire temperature sensor DS18B20 instead of the LM35. You can string eight of the DS18B20 sensors together over a good distance and...
Do something sensible and use 64 WD2812b NeoPixel programmable LED chip modules. They will all string together. It takes about 27 microseconds to send the RGB...
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