Ganteng Permanen

Part 3: Testing basic LEDs Serial TTL uart controller via DIY simple free #Windows #application #software

Part 2: soldering & wiring rs232 to ttl MAX3232 IC Socket DIP 16 build diy custom pc expansion board rgb led fan peripheral device arduino based controller db9 rs232 interfaces 2

#CH340E
#ATmega328p
#dtr

Wiring & soldering ATmega8 IC Socket DIP 28, capacitors, xtal on PCB dot matrix Double Layer Through Hole

learn by doing

thx for watching

#rgb
#smd
#led

compared with max232, max3232 is more stable & smooth, working voltage = 3V to 5.5V (no need 5v voltage regulator)

super mini module micro usb to serial ttl uart ch340e hw 728 communication port with dtr pin for enable auto reset uploading arduino sketch

com port rs232 wiring testing arduino circuit prototype max232 chip ic atmega8 5v voltage regulator cpu cooler rgb fan led

(case/scenario #3) how to fix error while burning bootloader on atmel ATmega8 AVR MCU Microcontroller with Arduino UNO as ISP & 16mhz external x-tall Crystall oscillator

==========error warning===========
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.

avrdude done. Thank you.

Error while burning bootloader.
=================================

ATmega pin 9 = arduino pin 20
ATmega pin 10 = arduino pin 21
both for external x-tal
if using internal xtal, they can be use as reguler digital io pin