PIC EXPERIMENTS PAGE
 MSF clock |
 Moon clock |
 Meditation aid |
 Treasure box |
 Geiger logger |
 Pseudo random |
|
GPS |
 Galvanometer |
 21 LED meter |
 MAX7219 |
 PIC expt. unit |
 Raspberry Pi |
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GPS |
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Amateur Radio Projects
 FT817 controller |
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G4JNT Projects
 FT817 keypad freq. entry |
 Direct Digital Synth DDS PIC |
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USEFUL LINKS
| Crownhill | Sparkfun | Microchip | parallax | CS technology |
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more soon |
ByPIC | mbed | arduino |
PIC in Practice PIC in Practice PDF |
COMPONENT SUPPLIERS
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Maplin Electronics |
RS Components |
CPC |
Rapid Electronics |
Farnell |
| Greenweld | Microchip | Jaycar |
more soon |
Cricklewood* |
| DigiKey* | Mouser* |
Radio Shack |
Jameco | more soon |
PROGRAMMING LINKS
| Python.org | raspberry pi.org |
Programmer’s Notepad |
Elektor Magazine |
more soon |
USEFUL BOOKS
PIC in Practice, D. W. Smith, 2006, Newnes. ISBN 0 7506 6826 1An introduction to PIC Microcontrollers, R. A. Penfold, 1997, Babani Press. ISBN 0 85934 394 4
Practical PIC Microcontroller Projects, R. A. Penfold, 1999, Babani Press. ISBN 0 85934 444 4
C Programming for Embedded Microcontrollers, Warwick A. Smith, Elektor, 2008. ISBN 978-0-905705-80-4
PIC MARKINGS
Example 1: 16C54XX, where XX can be JW, RC, LP etc.The 'C' means it is a one time programmable (OTP) device (unless the chip had a window in the top, see below).
Later chips with 'F' instead of the 'C', like the 16F84, were flash memory devices that allowed being programmed again and again.
16C54JW = windowed device (can be errased using a UV light)
16C54RC = One Time Programmable (OTP) = Resistor Capacitor oscillator
16C54LP = OTP, Low Power (e.g. 32kHz)
16C54XT = OTP, crystal or ceramic resonator oscillator (e.g. 4 MHz)
16C54HS = OTP, high speed oscillator (e.g. 20 MHz)
Example 2: PIC16F877A-20I/P
'PIC16F877' is the particular chip number / type
'A' is the revision version (i.e. an updated version).
The numbers '20' is the maximum frequency / speed in this case 20MHz.
The letters I/P at the end are i) the temperature range designations and ii) the package type:
For the temperature range designation:
C = normal: 0 to +70 C
I = industrial: -40 to + 85 C
E = extended: -40 to + 125 C
For the package type:
P = plastic and SO = surface mount
So a PIC16F877A-20I/P = is the latest (Revision A) version of the PIC16F877 chip which is a flash memory 20MHz industrial temperature range device in a plastic package.
Note: the A version of the 16F877 has Comparators and Comparator Voltage Reference modules that the PIC16F877 did not have (the older PIC16F877 is no longer avaliable).
THE CREATIVE SCIENCE CENTRE
Dr Jonathan Hare, The University of Sussex
Brighton, East Sussex. BN1 9QJ
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