PICAXE Manual Section 1 - TechnoPujades - Free

www.picaxe.co.ukSection 1 29GETTING STARTEDPICAXE-18/18A/18M/18X Pinout and CircuitThe pinout diagrams for the 18 pin devices are as follows:(0.3” DIL or 300mil SOIC)ADC 2 / Input 2Serial OutSerial InReset0VOutput 0Output 1Output 2Output 3PICAXE-18123456789181716151413121110Input 1 / ADC 1Input 0 / ADC 0Input 7Input 6+VOutput 7Output 6Output 5Output 4ADC 2 / Input 2Serial OutSerial InReset0VOutput 0Output 1Output 2Output 3PICAXE-18A123456789181716151413121110Input 1 / ADC 1Input 0 / ADC 0 / InfrainInput 7 / keyboard dataInput 6 / keyboard clock+VOutput 7Output 6Output 5Output 4ADC 2 / Input 2Serial OutSerial InReset0VOutput 0 / infraoutOutput 1Output 2Output 3 / pwm 3PICAXE-18M123456789181716151413121110Input 1 / ADC 1Input 0 / ADC 0 / InfrainInput 7 / keyboard dataInput 6 / keyboard clock+VOutput 7Output 6Output 5Output 4ADC 2 / Input 2Serial OutSerial InReset0VOutput 0Output 1 / i2c sdaOutput 2Output 3 / pwm 3PICAXE-18X123456789181716151413121110Input 1 / ADC 1Input 0 / ADC 0 / InfrainInput 7 / keyboard dataInput 6 / keyboard clock+VOutput 7Output 6Output 5Output 4 / i2c sclThe minimum operatingcircuit for the 18 pin devices is:5V4k722kin 2serial outserial in123181716in 1in 0in 712310kout 0out 1out 245678PICAXE-181514131211in 6out 7out 6out 5resetout 3910out 40VSee the USB / Serial Download Circuit section of this manual for more detailsabout the download circuit.Notes:1) The 10k/22k resistors must be included for reliable operation.DO NOT leave the serial in pin floating as THE PROGRAM WILL NOT RUN!2) The reset pin must be tied high with the 4k7 resistor to operate.3) No external resonator is required as the chips have an internal resonator.revolution(c) Revolution Education Ltd. Email: info@rev-ed.co.uk Web: www.rev-ed.co.ukVersion 6.9 07/2009All rights reserved.29