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Hi I have an arduino as a I2C master and a picaxe 20x2 as a slave. I can write data from the arduino to the picaxe over the i2c bus. The trouble im having is reading data from the picaxe. I can not work out what the issue is!!!! /*ARDUINO CODE*/ void setup() { Serial.begin(9600)...

Hi I have a single atmel chip that acts as a master i2c device and three 20x2 picaxes on the same bus acting as slaves. I can send data from my master to each of my slaves and these devices receive the data. However I can not work out how to repspond to the master? The only methods I can see to...

Hi Can anyone help with the 20x2 adc setup? I want to measure the voltage coming from an accelerometer. The accelerometer outputs a voltage <3.3v to show movement, at rest it is outputting 1.67v which increases as the unit is placed under acceleration. Obviously this is a 3.3v device, and my...

Hi I want to recreate the same "on/off" as a mechanical switch. At the moment I have a single wire with a mechnical switch. The wire is an TX line from another processor. While the switch is on I have TTL data outputting to my PC, when I switch it off the TTL data stops. How can achieve the...

Hey Im new here so hi! I working on producing a datalogger around the 18x. Im reading the altitude from a barameter module and want to ouput it to an eprom every sec. The system will log altitude over a long time. I have 2 questions. can you daisy chain the eproms, so as far as the 18x is...