Circuits & Schematics: pic - 5

41. A DIY indoor thermometer plus hygrometer with adaptive brightness control implemented to 7-segment LED displays
    Circuits Measurement Microcontrollers Usage
    .. about this sensor and its communication protocol in Measurement of temperature and relative humidity using DHT11 sensor and PIC microcontroller. The PIC16F688 uses the RC4 I/O pin to read the DHT11 output data. Note that R7 serves as the ...
    Jan 18, 2013

42. G-Force Monitor
    Circuits Measurement Microcontrollers Usage
    .. them, so I decided to make my own software and hardware. For hardware, I choice PIC16F877 that I had spare in my drawer, PIC firmware was written in MikroC, and software was written in Delphi 7. You can download full schematic, code for ...
    Jan 17, 2013
43. Easy Pulse: A DIY photoplethysmographic sensor for measuring heart rate. Part 1 - Theory and Schematic
    Circuits Measurement Medicine Microcontrollers Usage
    When I first built the Heart rate measurement through fingertip project, the infrared LED and photodiode used for finger photoplethysmography were actually from salvaged parts, and therefore, I could not provide specifications for them in the ...
    Nov 30, 2012
44. A brief overview of Allegro ACS712 current sensor. Part 2 - Interface the sensor with a PIC microcontroller
    Circuits Measurement Microcontrollers Usage Allegro ACS712
    .. PIC16F1847 microcontroller. A voltage to current conversion equation will be derived and implemented in the firmware of the PIC microcontroller and the actual load current will be displayed on a character LCD. Measuring dc current with ACS712 ...
    Nov 10, 2012
45. A brief overview of Allegro ACS712 current sensor. Part 1 - Theory
    Circuits Measurement Microcontrollers Usage Allegro ACS712
    .. sensor and its characteristics. In the second part, a test experiment will be carried out to interface the sensor with a PIC microcontroller to measure a dc current. Allegro ACS712. Theory The current sensing technique based on a shunt ...
    Nov 10, 2012
46. Double The Span And Digitize Bipolar Signals Using An MCU's ADC
    Circuits Measurement
    Mike McGlinchy Electronic Design Europe Many microcontrollers (MCUs) incorporate onboard analog-to-digital converters (ADCs), usually with many multiplexed input channels. However, these ADCs are typically unipolar, able to handle only signals that ...
    Sep 26, 2012
47. chipKIT: Temperature and relative humidity logger
    Circuits Automation Measurement Embedded Systems Microcontrollers Usage Arduino
    .. of the MCU through bit-banging of an I/O pin. Measurement of temperature and relative humidity using DHT11 sensor and PIC microcontroller for more details on the DHT11 communication protocol. The following picture describes the four pins ...
    Sep 6, 2012
48. Use an LED matrix horizontally
    Benabadji Noureddine
    Circuits Microcontrollers Usage
    .. at least a 5×5 LED configuration and need a dedicated subroutine. The circuit in Figure 1 uses an 8-bit, 18-pin PIC microcontroller and a decade counter to drive one or two 5×7 LED units to provide a display module of two or ...
    Jul 6, 2012
49. Serial four digit 7-segment LED display module
    Circuits Embedded Systems Microcontrollers Usage Arduino
    .. module with three general purpose I/O pins of the PIC12F683 microcontroller. The program is written in mikroC Pro for PIC compiler ( mikroElektronika ) but can be easily modified for other high-level compilers. The GP0, GP1, and GP2 pins ...
    Jun 30, 2012
50. 2.4GHz WiFi & ISM Band Scanner. Part 2 - Firmware and Sowtware
    Circuits Wireless Microcontrollers Usage
    .. 1 - Description and Schematic PIC Firmware The firmware running on the PIC18F2550 was written for the CCS C compiler and uses the CCS USB protocol ...
    Jun 6, 2012

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