Circuits & Schematics: pic - 3

21. Portable temperature, humidity and light ambient datalogger. Part 1
    Circuits Automation Microcontrollers Usage PIC18F2620
    .. a voltage divider to adjust the maximum battery value (4.2 V at the end of the charge) to the 3.0 V maximum voltage on the PIC pins. At this time, duration of the battery is around 10 days. With the actual software, there isn’t any low ...
    14-09-2016

22. Flyback switcher works down to 1.1V, flashes HBLEDs
    Circuits Supply Light EPCOS TN33/20/11-2P80
    .. values were between 6 V and 24 V by the adjustment of a single resistor value. The output power is sufficient to drive a PIC microcontroller in low power mode (15 µA@32 kHz). With no modification, the circuit will work as a strobe, ...
    31-01-2016

23. The perfect Remote, Programmable, Controller for interactive LED strips. Part 2 - Controller Configuration, Connections and Operation
    Circuits Wireless Microcontrollers Usage Light
    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 ...
    30-10-2015
24. DIY Digital AC Watt Meter
    Circuits Measurement Digital Microchip PIC18F252
    .. is an AC Watt Meter which can measure the real power consumption of a device connected to the 230Vrms/50Hz mains line. The PIC microcontroller PIC18F252 from Microchip collects the voltage and the current information with the help of ADCs and ...
    24-09-2015
25. Monitor 15 contacts with one PIC input
    Circuits Microcontrollers Usage Microchip PIC12F683
    .. an internal comparator with selectable values for the internal voltage reference V REF . The majority of Microchip 8-bit PIC microcontrollers in the mid-range family feature one or two internal comparators with just this. As a simple and ...
    02-09-2015
26. Facilitate oscilloscope debug of small microcontroller systems
    Circuits Measurement Microcontrollers Usage
    .. slice beginning clr Test djnz r7,Loop ; Repeat for 9 bits setb EA ; Enable all interrupts pop psw ; Recover PSW ret END A PIC versin is shown below. The routine uses 2 bytes of RAM 2 registers. ...
    20-05-2015
27. Microcontroller Solves Complex Temperature Polynomial Equations
    Circuits Microcontrollers Usage Theory LM103 PIC16F887
    .. fast-executing program and simple circuit allows a PIC MCU to linearize a thermistor and accurately determine and display the temperature from its measured resistance. ...
    20-05-2015
28. Ramp Generator Uses Microcontroller Emulation Of Unijunction Transistor
    Circuits Oscillators Microcontrollers Usage
    .. Gualtieri Electronic Design By using a standard, low-cost PIC microcontroller with a short block of code that emulates a simple ramp-signal generator based on the venerable ...
    26-03-2015
29. One wire brings power & data to LCD module
    Circuits Microcontrollers Usage
    Noureddine Benabadji EDN Embedded systems frequently use HD44780 -type LCD displays as it is considered the most popular alphanumeric display controller. The interface comprises at least 14 pins: eight for data, three for control (EN, WR, RS), two ...
    13-11-2014
30. Two PIC pins drive six LEDs
    Circuits Microcontrollers Usage
    .. by multiplexing [1-4] . A Some other Design Ideas use additional logic, which increases cost and size [5]. Figure 1. Two PIC pins drive six LEDs Note that VDD must be between 2V 3V: for example, if LED2 is ON (Table 1), LED4 and LED6 will ...
    03-06-2014

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