Tindie

Name: CH340G Serial Adapter - fused w/all pins available
SKU: 7152
Price: 10.00 USD
Availability: Discontinued

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CH340G Serial Adapter - fused w/all pins available

CH340G Serial adapter - 0.5A PTC fuse, all pins broken out, and the "FTDI pinout" used on the Pro Mini and my ATtiny breakout boards

Designed by Azduino by Spence Konde in United States of America

CH340G Serial Adapter - fused w/all pins available 1

CH340G Serial Adapter - fused w/all pins available 2

CH340G Serial Adapter - fused w/all pins available 3

CH340G Serial Adapter - fused w/all pins available 4

2016-05-14T04:21:48.310Z-CH340Gv2_Main.png

2016-05-14T04:32:03.805Z-CH340Gv2_Over.png

2016-05-14T04:46:02.783Z-CH340Gv2_Back.png

2016-05-31T04:58:58.160Z-CH340GWires.png

Retired

This product is no longer available for sale. The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.

CH340G Serial adapter - 0.5A PTC fuse, all pins broken out, and the "FTDI pinout" used on the Pro Mini and my ATtiny breakout boards

DISCONTINUED - I am working on a new design which I hope will offer a more compelling value proposition than these did. The CH340G is an inexpensive USB serial adapter chip - similar to the better ...

DISCONTINUED - I am working on a new design which I hope will offer a more compelling value proposition than these did.

The CH340G is an inexpensive USB serial adapter chip - similar to the better known FTDI FT232 chip. Programming an Arduino Pro Mini, a breadboard Arduino, or one of my ATtiny boards requires a USB serial adapter with a 6-pin header with GND, Vcc, Tx, Rx, and DTR. This has traditionally taken the form of an "FTDI" adapter using the FT232 chip, however, not only are these parts more expensive, but they are frequently counterfeited, and the counterfeit chips do not work with the new drivers (Google "ftdigate" for the full story). The CH340G serial adapters are reliable and are not known to have a counterfeiting problem.

This CH340G-based adapter not only has the usual "FTDI" 6-pin pinout, it also breaks out the five other "modem control" pins - RTS, CTS, DCD, RI, and DSR. RTS is an output, the other four are inputs (gently pulled up, active low). Full featured terminal software, such as hTerm (free) allows the state of these pins to be viewed on the screen, and the RTS and DTR pins to be asserted and deasserted by clicking the corresponding buttons. When connected to a typical Arduino board, twiddling DTR will reset the board - RTS is unused. This functionality can be a great help in debugging.
In the 6-pin "FTDI"-style pinout, the second pin, normally CTS, is left open, as most Arduino boards that use that header simply tie that pin to ground, which would render CTS useless.

Features

500mA self-resetting PTC fuse
6-pin programming header for Arduino Pro Mini et. al.
Mini-USB connector (I have not been satisfied with the durability of Micro-USB)
Tx, Rx, and Power LEDs in the form of an RGB LED. Series resistors are 2.2k on tx and rx
All modem control pins broken out
Available in 3.3v and 5v versions
3.3v version uses a REAL VOLTAGE REGULATOR, not two cheap signal diodes in series (unfortunately common in low-end serial adapters).
Assembled in the USA.

This board is sold ASSEMBLED as shown, WITHOUT pin header.

Retired

This product is no longer available for sale. The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.