Post Created date
Duplicating eeproms
The ICs in the JPG file are not EEPROMs.  They are one-time-only programmable ROM ICs.  You write to them once.  If your program works, wonderful.  If your...
Sunday, 15 September 2019 - 16:10
Program conversion Arduino Pro Mini ATMega328P to ATtiny202
You could write the whole algorithm described above in AVR assembly language and have it fit in a few hundred bytes.
Sunday, 15 September 2019 - 15:48
Efficiency in Amateur(1)
So,...uh... does this have something to do with some kind of radio?   For standard FM in the 88 to 106 MHz range, this RDA5807M chip works wonders on a 32768 Hz watch crystal...
Sunday, 15 September 2019 - 15:43
REAL ONE SECOND by timer 0---->problem in my code
I suggest that you use the timer that makes it easy to do what you want.  That's the 16-bit timer1.  Set the pre-scaler to 64 and the 16-bit count register to 34285 (...
Saturday, 14 September 2019 - 18:09
bin source to human readable convert
Stealing code by reverse engineering the downloaded binary into disassembled mnemonics just never happens in the real world.  The only people that attempt it are beginners...
Saturday, 7 September 2019 - 20:42
using 3-15v buckboost but requires 5volt to enable?
Voltage doublers (using diodes and capacitors) only work with an A.C. input voltage.  A D.C. input voltage is put into the DC-DC module.  When you touch Vout you are...
Saturday, 7 September 2019 - 20:18
Schematics for "MH-Tiny"? Can it be made to run at 3.3V
Hello,   This Tiny88 board gets its power from one of two places.  There is +5V and ground(earth) on the USB connector.  The Tiny88 gets its power from here...
Sunday, 1 September 2019 - 21:07
how to integrate a number as char within a set of chars for UART transmission?
I'm not sure what you mean by ".. integrate a number e.g. 12345678 in a set of char for UART... ".  I assume that you want to take the 32-bit number 0x00bc614e (12,345,678...
Wednesday, 28 August 2019 - 20:35
FatFS + mega328p
Since you work on an Arduino board (a UNO, Nano, or Pro Mini), use the SD library that is included with Arduino distribution.  Limor Fried wrote it, and she allows the...
Wednesday, 28 August 2019 - 02:17
ISR vs. Timer
Since the interval of the ISR isn't going to change, make a temporary version of the program that sets a port bit at the beginning of the IRQ and clears it at the end of the IRQ....
Wednesday, 28 August 2019 - 01:53
BCD output from RTC - is this really BCD?
Your display method is not correct.   Calculate the seconds value with:    (((seconds_reg & 0x70)>>4)*10) + (seconds_reg & 0x0f)
Tuesday, 27 August 2019 - 00:51
Atmega 32 Interfacing with LDR
R1 and D3 are not connected on the schematic.   The blue LED (D2) needs a resistor: 500 - 1K ohms is OK.   R1 and R5 make a voltage divider, but the resulting...
Thursday, 22 August 2019 - 21:36

Pages