Recent content by pma32904

Hi, I'm looking for some ideas on building an anti-tamper circuit for an 08M based device. The 08M would be on a circuit board in a dark plastic project box. The idea is to disable the circuit if the box is opened with power applied or not. Several ideas come to mind: 1 - use a photo-transistor...

In the case of using a negative argument with Calibfreq, per the 5.0.7 manual, section 2, page 15, the "equivalent BASIC code is" let b12 = 64 - factor poke $90, factor pause 2 B12 is calculated, but not used. I assume this should read: poke $90, b12 Is my assumption correct? Paul...

Any thoughts on generating IR out at frequencies other than 38KHz with an 08M? I know Hippy has some ideas on line for Infrain work-around that might work on the receive side with the correct demodulator. Only thing I can figure on the transmit side is to use pwmout to get the carrier frequency...

Curious if some sporadic results I've seen could be due to unused pins not being terminated/pulled to a known level? One of the things I've seen is an LED being driven from out2 via 300-Ohm resistor to ground changing brightness. The code is 'high 2' or 'low 2', for example. So there should be...

From what I've read, IR inout with infrain2 only returns when a valid IR symbol is read. I'd like to drive an LED heartbeat with the pwm while waiting for IR input. Might it be possible to poll an input pin for any level change on the IR decoder, then (perhaps interrupt) go to infrain2 once some...