Programming a Arduino Mini Pro 5V ATMEGA328 with a PL2303
Parts Required:
Drivers
Windows (8/8.1/10 are not compatible with this UART)
Windows Driver Installer Setup Program
(For PL2303 HXA, XA, HXD, EA, RA, SA, TA, TB versions)
Installer version & Build date: 1.10.0 (2014-09-25)
Windows XP (32 & 64-bit) WDM WHQL Driver: v2.1.51.238 (10/22/2013)
MAC
Mac OS X Universal Binary Driver v1.5.1 (PKG file format)
Steps
1. Connect jumper wires VCC and Ground to Mini Pro. (Check for UART brand below)
2. Plug in Programmer into USB port.
3. Red LED on programmer, Red LED & Flashing Blue LED on Mini Pro should all be operational.
4. Connect jumper wires to TX—>RX and RX—>TX (See Image 1 & 2)
5. In IDE choose Board: Arduino Pro or Pro Mini (5V, 16 MHz) with ATMEGA328
6. In IDE choose Com Port:
7. Load Sketch.
8. Click Upload and wait for the LED next to Power LED on Programmer to Flash. (Sometimes very faint)
9. Push Reset on Mini Pro and release. You should see TX/RX LED's Flash on Programmer.
10. Sketch should be loaded.
VERIFY UART STYLE
UART A
UART B