On one of my recent visits to an electronics website I saw this voltage sensor, intrigued I bought it and wondered how it worked, there didn’t seem much to it. As a Chipkit Uno is limited to 3.3v maximum on …

In this example I wanted to connect a shield that I purchased for Arduino development and use it with my Chipkit Uno 32. The shield is a Nokia 5110/3310 display and is called the SainSmart Graphic LCD4884 Shield For Arduino …

In this example we will connect an LM35 temperature sensor to our Chipkit Uno The LM35 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM35 thus has an advantage over …

RKPK40 Prototype PCB The next PIC development board is again from RKeducation and is designed fo use with 40 pin PICs. In this case I used a PIC18f4550 Here are the specs for the 18f4550 – more details available at http://www.microchip.com/wwwproducts/Devices.aspx?product=PIC18F4550 …

The MAX7219 is a compact, serial input/output common-cathode display drivers that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, …

In previous posts we showed some examples for the 4067 16-Channel multiplexer – http://www.piclearning.net/132/chipkit-uno-and-4067-led-output-example.php The HCF4051 device is a monolithic integrated circuit fabricated in MOS (metal oxide semiconductor) technology available in SO-16 and PDIP-16 packages. The HCF4051 analog multiplexer/demultiplexer is a digitally …

In this example we will connect a 4067 to our Chipkit UNO, at the expense of 5 I/O lines you can get 16 outputs (or inputs) The HEF4067B is a 16-channel analog multiplexer/demultiplexer with four address inputs (A0 to A3), …

In a previous example we connected a DHt11 sensor and outputted the results via the serial connection, this is reasonable enough for testing purposes but a more practical example would be to display this information on an LCD display for …

The DHT11 digital temperature and humidity sensor is a composite Sensor contains a calibrated digital signal output of the temperature and humidity. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the …

This example is like a dark activated alarm using an LDR and a LED, in this case when the value read in drops below a certain level the LED will light. In the real world you could make a dark …