Talon SRX Universal Breakout Board

The ability to convert the very fine .05 pitch 2x5 connector to a more standard .1' pitch is very useful and for incremental encoder cable connections. The blinking LEDs and LEDs for limit switches are also very useful for the electrical team to verify an encoder is working. However I would not use this board if you are planning to use it for analog inputs. Using the MA3 analog encoder we found the supply voltage out of the analog + terminal measured 4.75VDC instead of the expected 5VDC. The 5VDC signal gets converted to a 3.3.VDC so the 4.75 max input signal should convert to a 3.135VDC into the Talon SRX. The SRX attempts to take a 3.3VDC signal and convert it to 1023 ADC steps. There also seems to be a loss of signal in the circuit as 902 was the maximum ADC value we could measure from the Phenix tuner with a 4.75 input signal to the S terminal of the Analog pins (Expected ADC was 972). With a loss of 121 ADC counts this equates to a minimum of 42 degrees of loss or unknown position for an 360 deg analog encoder.

These are our team's favorite talon-SRX breakout boards. We use them on the Talon SRX and Spark Max. The only imperfection is that the limit swich headers are only two pins: ground and signal. This is fine for contact closure mechanical limit switches, but infrared and magnetic limit sensors that need power need to get it from elsewhere. +5v can be had from the encoder connector, but wiring that is a little ugly, requiring the 3-pin cable to split to two different connectors.

5 Stars

This device made our controls and programming job so much easier in 2017! Unless you're using something that natively interfaces to that tiny 10-pin connector, this is by far the easiest way to get your sensor inputs to a Talon SRX.

5 Stars