Tuesday, March 27, 2012

PIC based GLCD development kit

Raj from Embedded Lab reviews the PIC based Graphical LCD development kit from iCircuit technologies. This GLCD development kit includes a 28-pin PIC development board, a 128×64 GLCD module (KS0108 controller chip), a GLCD adapter board, two 10-pin IDC ribbon cables, and a blank prototyping board.

Tuesday, January 24, 2012

High resolution digital capacitance meter

This digital cap. meter from RomanBlack provides capacitance measurements ranging from 0 pF to 50 uF with a resolution of 0.01 pF. It uses the on-chip analog comparator of PIC16F628 microcontroller as an oscillator whose frequency is controlled by an external resistor and a capacitor (to be measured). Since the resistor is fixed, the capacitance value can be determined by measuring the frequency of oscillation.