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Problem with 31250 baud
''No musician will ever consider a Midi keyboard WITHOUT velocity sensitive keys. ''   I beg to differ.   I'm a musician and I love not having to deal with...
Thursday, 9 July 2020 - 03:21
Problem with 31250 baud
I don't understand why the USB-serial(RS232)  is being used with MIDI baud (31250 or 1 MHz/32, which was advanced technology in 1982).    The MIDI bytes should be...
Monday, 6 July 2020 - 02:36
WCH MCS-51(8051) USB MCUs
All discussion of 8051 reminds of the Godfather III movie where Don Michael Corleone says, " just when I thought I was out, they pull me back in".   What 8051 assembler...
Saturday, 4 July 2020 - 02:33
AVR GCC +700% Code Size
The advantages of working in assembler is only apparent when using microcontrollers that are tiny in size and flash memory space: specifically the Tiny13 and the new Tiny10 that...
Friday, 26 June 2020 - 18:03
usbasp programmer pinout
Here is a reworked diagram of the correct 10-pin AVRasp header connector.    In the original photo above, the ribbon cable was inserted into the un-pressed 10-pin...
Thursday, 25 June 2020 - 19:07
usbasp programmer pinout
Most DVMs have red and black cables with a huge probe tip on one end and a "banana" clip in the other.   Connect one lead of a general-purpose jumping cable with "...
Wednesday, 24 June 2020 - 22:23
Need help with schematic
The only thing that I can see wrong with this schematic is the pin-out numbers on the TSOP38434 diagram.    Looking at the front of this IR module, pin 1 is on the...
Wednesday, 24 June 2020 - 21:44
I need help programming an AVR
There are two basic ways to program an AVR.  One is the "Store Program Memory" method which uses a bootloader.  This is used by the standard Arduino over the USART TX:RX...
Wednesday, 24 June 2020 - 18:15
Power Changeover Switch - Ingenious Circuit Needed
When the AC input voltage is rectified and under 500mA load,  what is its peak ripple voltage? Can you add a big capacitor after the bridge which would result in the...
Saturday, 20 June 2020 - 13:23
Measuring incorrect voltage by multi meter. What could be reason
Is the right-hand side of the NAU7802 not have any connections?  If AVDD and DVDD are not connected to +3.3V, then there may be lots of power going through the positive...
Wednesday, 17 June 2020 - 22:32
ATtiny doesn't do what it should
Hello,   You are having your timer interrupts much too quickly.  This 1MHz Tiny85 can do @10 assembler op-code instructions in 10uS, while the 16MHz Arduino can do 160...
Monday, 15 June 2020 - 19:37
switch on/off with same button
You don't need any special code to turn off/on a microcontroller (uC) with a simple single pole-single toggle push switch.  Get a push switch that is normally open and...
Monday, 15 June 2020 - 18:46

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