Author - Ed Rojas

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Ed Rojas	Write for Electronic Design
Ed Rojas is an engineering technician with Texas Instruments, Tuscon, Ariz. Email address: rojas_ed@ti.com Web site: http://www.ti.com/
2 results found for Ed Rojas, displaying items 1 - 2

April 13, 2006 [Ideas For Design]
Use A PC Serial Port For Pulse-Encoded Communications
The simple method described here evaluates a one-wire device that uses pulse-width-encoded communications from a PC serial port. Communications errors such as parity and acknowledge are monitored. The hardware interface to the PC is a MAX232 driver/receiver, and the slave in this example case is a Texas Instruments TMP141 temperature sensor. The circuit can be expanded to four sensors on the same bus by using the TMP141's four programmable addresses derived from A0 and...

March 1, 2004 [Ideas For Design]
Temperature Strip-Chart Recorder Uses Parallel Port
A simple, inexpensive method for building a temperature strip-chart recorder involves a parallel port that communicates with four TMP121 IC temperature sensors (Fig. 1). The sensors communicate via the...