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…
This is a simple example which shows how to connect an LDR to a Chipkit UNO. In this example we are using Mpide and will be outputting the results via the serial monitor window A photoresistor or light-dependent resistor (LDR)…
RKPK28 Prototype PCB The next PIC development board is again from RKeducation and is designed for use with 28 pin PICs in this case I used a PIC 18f2685, another PIC microcontroller I didn’t have in my collection You can…
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