Circuits & Schematics - Microcontrollers Usage - 10

Andreas Freiherr VishayOpto Creating a “Magic” Cat Doorbell with the TSSP4P38 Proximity Sensor Leonie and her family live in a building with seven other families. Like many cats, Leonie loves to explore her surroundings, and after ...

Ricardo Jiménez and Juan C. Ángeles Electronic Design A basic microcontroller can be used to convert a sensor's analog output into a pulse train, thereby making the output compatible with standard digital I/O ports. When the need ...

An inexpensive way to implement high-resolution digital-to-analog conversion is to combine microcontroller-PWM (pulse-width-modulated) outputs with precision analog-voltage references, CMOS switches, and analog filtering ( Reference 1 ). However, ...

Part 1 Software The software for the datalogger is download section (PIC_DATALOG_V00d). I use Mikroc Pro PIC compiler from mikroElektronika , the libraries of this compiler are great! Especially the FAT32 library, it allows to manage the micro SD ...

Part 1 - Hardware: Schematic, PCB and case. Hi all! I’m continuing here with the last board I design and now I’m continuing testing. It’s a battery-powered small datalogger based on a PIC18F2620 microcontroller (Figure 1). The ...

Ioan Ciascai EDN Reading quadrature encoder signals at high speeds (e.g., 1 MHz, or, 1 m/s with a resolution of 1 um) often requires dedicated hardware. This Design Idea shows a simple scheme to accomplish this function using only an ATtiny2313A ...

Les Hughson EDN The ATMega168 is a great general purpose 8-bit AVR microcontroller from Atmel . It has 23 GPIO pins, but sometimes (as I have found) you can run out of I/O pins as your design grows. This happened to me recently when, of the 23 GPIO ...

Boris Landoni open-electronics.org Part 1 - Specification and Schematic Operation The receiver provides for the control of the two channels by a 433 MHz remote control with MM53200 / Holtek HT12 encoding or a compatible one. Each channel is ...

Boris Landoni, open-electronics.org Since when white light emitting high brightness LED are available, the handover from traditional lighting bulbs to the solid-state lighting has become irreversible: LEDs have an efficiency (expressed in ...

Several previously published Design Ideas and appnotes [ 1-4 ] show how to use many pushbuttons with a minimum number of inputs. They require an RC circuit where the timing can be measured to identify which pushbutton has been pressed, or an ADC ...