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Student-Hobbyist Electronics Projects TutorialsBasic electronics and hobby projects featuring Arduino, Picaxe, Microchip PIC.
http://www.bristolwatch.com/
Basic electronics and hobby projects featuring Arduino, Picaxe, Microchip PIC.
http://www.bristolwatch.com/
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Student-Hobbyist Electronics Projects Tutorials | bristolwatch.com Reviews
https://bristolwatch.com
Basic electronics and hobby projects featuring Arduino, Picaxe, Microchip PIC.
bristolwatch.com
Student-Hobbyist Electronics Projects Tutorials
http://www.bristolwatch.com/index.htm
Above) Hall Effect Sensors. View all of my You Tube Videos. Student-Hobbyist Electronics Projects Tutorials. The purpose of these pages is to introduce the student and hobbyist to electronics projects. My hope is generate interest for those thinking about entering a high tech field, or simply to have fun. New June 1 2016:. Arduino Projects Revisited Revised. Programming ADS1115 4-Channel I2C ADC with Arduino. Arduino uses ADS1115 with TMP37 to Measure Temperature. Arduino with MCP4725 12-Bit DAC. WiringP...
Arduino Analog Digital Conversion Voltmeter
http://www.bristolwatch.com/ele2/dacvolts.htm
Arduino Analog Digital Conversion Voltmeter. Earlier we learned how to use Arduino's PWM output with a LM358 voltage amplifier to make variable DC power supply. Now will combine that idea with a LM311 comparator to demonstrate how to read a voltage greater than 5-volts. The idea is to understand how analog to digital conversion is done. See Arduino Pulse-Width Modulation Digital to Analog Conversion. Fig 2 shows how this would work with a LM311 type comparator. The PWM DAC output is connected to the LM31...
Raspberry Pi Interfacing 8-Digit LED MAX7219 Display Driver
http://www.bristolwatch.com/ele2/rpi_count_max7219.htm
Raspberry Pi and the 8-Digit LED MAX7219 Display Driver. The program presented below will allow Raspberry in Python and setup a MAX7219 display driver to act as a four digit counter. The program was ported over from Arduino C to illustrate how coding can be reused. The MAX7219 display driver can drive 8 digit multiplexed LED display or a 8X8 LED matrix. This is setup in software. It includes selectable internal binary-coded-decimal (BCD) decoding which is used here. The position and value are output to t...
Arduino Hardware Interrupts Tutorial
http://www.bristolwatch.com/arduino/arduino_irq.htm
Hardware Interrupts Demo-Tutorial for Arduino. Here we will explore hardware interrupts on the Arduino microcontroller. This is an electrical signal change on a microcontroller pin that causes the CPU to do the following largely in this order:. 1 Finish execution of current instruction. 2 Block any further interrupts. 3 The CPU will "push" the program counter onto a "stack" or memory storage location for later retrieval. 7 Will re-enable interrupts. In the case of Arduino this is set by both the boot loa...
Connect-Program Raspberry Pi MM5451 LED Display Driver
http://www.bristolwatch.com/ele2/rpi_MM5451.htm
Connect-Program Raspberry Pi MM5451 LED Display Driver. The subject here is connecting the Raspberry Pi to a MM5451 LED display driver. This is written in Python to demonstrate bitwise programming and shift register operation. Using only two input pins (clock and data) for serial date input produces 35 open drain outputs. The 35 outputs are 15mA sink. The MM5451 comes in a 40 pin DIP package as used here. Display brightness is determined by control of the output current LED displays. A 0.001uF ca...Conne...
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Attempts to control an LCD using Arduino and a shift register (failed) and I/O expander (succeeded). | GolezTrol_Tech
https://goleztrol.wordpress.com/2013/02/11/attempts-to-control-an-lcd-using-arduino-and-74hc595n-failed-and-mcp23016-succeeded
Because I have to put it somewhere. Arduino First – Light Seeking ‘Robot’. Light Seeking Robot, version 2 →. Attempts to control an LCD using Arduino and a shift register (failed) and I/O expander (succeeded). February 11, 2013. I’ve been attempting to control an LCD using my brand new Arduino and a 74HC595N shift register, in which I failed (for now). I also tried the MCP23016 pin expander, which I got working after quite some experimentation. I even wrote a library for it! The I2C I/O expander. People ...
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Student-Hobbyist Electronics Projects Tutorials
Hobby Electronics Projects and More. Student-Hobbyist Electronics Projects Tutorials. View all of my You Tube Videos. Also visit and subscribe to My YouTube Channel. The purpose of these pages is to introduce the student and hobbyist to electronics projects. My hope is generate interest for those thinking about entering a high tech field, or simply to have fun. How to use this Website. All of the example circuits have been built and tested - I do not use simulation software such as SPICE. I don't use...
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