Rex Niven has a Masters Degree in Engineering Science from the University of Melbourne and has worked as a design engineer in New Zealand, Britain, France, and Australia. Since 2000 he has managed his own firm, Forty Trout Electronics in Eltham, Victoria, Australia/
Rex Niven
Rex Niven
Areas of interest of the author: Supply Light Microcontrollers Usage Wireless Interfaces
Publications on RadioLocman by the author Rex Niven:
- Current mirror drives multiple LEDs from a low supply voltageDriving LEDs at a regulated current from low supply voltages can be difficult because minimal overhead voltage is available for control circuits. A current-mirror architecture is suitable but usually works only...Jan 6, 2025
- RC lowpass filter expands microcomputer's output portIt’s almost a corollary to Moore’s Law: Next year, microcomputers will have more features, and the software team will have bigger ideas. Unfortunately, though, the number of output pins will stay the same....Mar 19, 2018
- Improve RFID by killing noiseRFID is great technology, but noisy power and other aggressors can ruin performance. RFID readers using low frequency signals (ca. 130 kHz), like the industry-workhorse TIRIS RFM-007B, are of course very sensitive to...Dec 12, 2017
- One wire controls LCD moduleThe ubiquitous LCD (Figure 1) (and VFD) modules based on the HD44780 controller IC can require up to 12 lines from the host. Figure 1. A typical LCD module. This hardware...May 24, 2017
- Microcontroller Inputs Parallel Data Using One PinInputting multiple bits of information using a single entry pin of a microcontroller without the complexity of UARTs can prove useful. Such a scheme could allow scanning of a keyboard, mode switches, or any relatively...Nov 5, 2008
