Custom Products from Masters Communications
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Custom Products from Masters Communications |
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Pricing:
Complete Kit - with preinstalled surface mounted components - $25.00 each.
Assembled and Tested - $50.00 each.
Shipping and handling is calculated at checkout for US and International orders.
First-Class shipping available to most locations worldwide, calculated at checkout.
PayPal accepted - order below.
What is it, and why do I need it?
It's a better USB to TTL adapter than what's "out there" currently. The primary requirement was to use a USB chip that was compatible with Windows and Motorola programming software to program radios. But - it can be used for any purpose where an adapter with the fullest feature set is required. A REAL FTDI USB chip was the only choice, because it gives the widest compatibility with Windows and Linux software. There are plenty of Chinese copies, as well as lots of other USB chips out there for just a few pennies, but none offer the guaranteed compatability that the FTDI chips have earned.
There are lots of other USB to TTL products out there, some for as little as $5, but they were all limited for some reason to six I/O pins: TXData, RXData, +5V, Ground, and two handshake lines. Apparently most of these products were aimed at Arduino and robotic functions. Almost every one had LEDs on the TXD and RXD lines, since the USB chip has dedicated outputs for these. But the handshake lines varied among products. Some bring out all the handshake lines onto pads on the circuit board, which allows the user to choose which ones they want to connect to the six-pin I/O connector. Even FTDI itself offers several pre-configured cable solutions, with the USB chip and a few other parts put inside the molded USB connector housing.
In this instant case, we weren't sure which handshake lines were required by the programming software, but it didn't matter since we're bringing all of them out to the Molex connector for your use. We knew we wanted LEDs on all eight serial port lines (two data, six handshake) but also knew that the radios which needed to be programmed had TTL inputs. There are a lot of USB to RS-232 products already out there but none have LEDs monitoring all of the signals, or signals that come to a pin on a connector. This is like having a serial port monitor along with a USB to TTL adapter, all in one product.
So - we designed this board so you should never need anything more for USB to TTL conversion and interfacing. You get all the signals present on an RS-232 DE-9 serial port except the data levels are TTL active-low, rather than the bipolar RS-232 levels.
The high points:
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Shipping amount is calculated at checkout for shipping to most locations
Worldwide.
Shipping amount is calculated at checkout for shipping to most locations Worldwide.
Ultimate FTDI Adapter Evaluation Article and
Detailed Description By Robert W. Meister WA1MIK
Custom cables available from URI Cables. They will
build a custom cable for the FTDI USB to TTL Converter.
Email Kevin Custer for ordering information, ordering by check, and/or support of this exciting product.
Product of Masters Communications, all rights reserved.
Designed by Robert W. Meister WA1MIK
Specifications may change without notice.
Images are property of Kevin Custer - W3KKC
Board layout by Kevin Custer W3KKC
HTML 6/20/2020, Kevin Custer All Rights Reserved!