EDN

Microcontroller programmer taps power from PC’s serial port

Just like a PC’s USB port, the serial port on a PC can also in some cases serve as a power supply. A USB port can provide as much as 500 mA at 5V, but a serial port provides less power. Even with the ...
EDN

An efficient bit-banged SPI port for 8051-compatible microcontrollers

Although 8051-compatible microcontrollers with SPI ports are available, a lower-cost device with an SPI port bit-banged through GPIO pins often suffices. The code shown here takes advantage of ...
Electronic Design

Drive Multiple Displays With A Single Microcontroller Port Line

Seven-segment displays are needed in many instrument designs. In conventional microcontroller-based designs, four output port lines are allocated for one seven-segment display. Figure 1 shows the ...
Business Insider

Synopsys Announces Support of TensorFlow Lite for Microcontrollers on Energy-Efficient ARC EM and ARC HS Processor IP

The TensorFlow Lite for Microcontrollers port to the Synopsys DSP-enhanced DesignWare ARC EM and HS processors enables a wide range of machine learning applications on resource-constrained edge ...
Hackaday

How A Microcontroller Hiding In A USB Port Became An FPGA Hiding In The Same

When you think of microcontroller development, you probably picture either a breadboard with a chip or a USB-connected circuit board. But Tim Ansell pictured an ARM dev board that is almost completely ...
Electronic Design

Set DC-Motor Speed with Light-Controlled Microcontroller Circuit

This file type includes high resolution graphics and schematics when applicable. This 8051 microcontroller-based control circuit adjusts the speed of a small permanent-magnet dc motor via photosensors ...