Recent content by buzzlightyear

Thanks again Alan, the translation will probably be simple 1-1 stuff, for example ASCII character number to midi value, eg ASCII code 100 to midi value 100. The end goal is to be able to use the handheld computer to send any kind of channel specific messages - midi note or controller message, I...

Thanks Alan, so is it possible to receive at 9600 using SERIN and send using HSEROUT at 31250 on the same 08m2? The incoming data will just be key presses over a terminal on the handheld, then I want the 08m2 to translate these to midi messages and send out.

I want to try an idea of connecting an old handheld computer with a maximum rs232 baud rate of 9600 to a 08m2 have the 08m2 listen for keypresses then convert those to midi commands and output at 31250 (midi baud rate) I don’t think it is possible but wanted to be sure. I am not averse to using...

Yes I think I need to figure out what sensors I need then go from there, I was just using a simple LDR module for testing, but eventually will probably want to do temperature, voltage, humidity, and maybe other stuff too. Possibly then upon a certain value from a sensor a pin goes high, say to...

Yes that SELECT CASE structure is very useful, I’d never have thought of that, but now I have added a couple more CASE statements including a readadc if a key is sent over serial and a serial output of the value, really handy! Next is to figure out a way of converting the raw adc value into...

Thanks so much hippy, I will try this out :) Out of interest why the disconnect command in the power on reset part? Edit: Ah, to stop the chip looking for downloads which might interfere with operation. Next goal is to read a sensor and output the value over the serial port after a request...

My goal initially is to turn on/off some LEDs from the computer with a key press lets say 2 LEDs, the Picaxe will maintain the state until told to change from serial, also the Picaxe will send “LED1 On” / “LED1 Off” as appropriate. I already loaded the serial example in PE6 to the 08m2 and...

So you mean the shifter will power the picaxe from the 5v VCC line of the shifter? I thought the level shifter gets its power from the RS232 port, so if that is the case then it would be for all intents and purposes the same thing - basically I’d build the level shifter and picaxe in a box and...

I see, well I will be using an older computer (possibly a few different ones) and will just be using the rx/tx pins, I think I’ll just add a ready made rs232-ttl level shifter to be on the safe side and also to make construction easier (idiot proof!) thanks all for the input and ideas.

Yes the 22k and 10k resistors form a voltage divider if I’m not mistaken, but I wondered if the AXE026 and AXE027 were doing anything inside the connector to reduce voltage too. Anyway thanks for your help, seems safe to proceed - now I just have to learn about serial on picaxe :)

Thanks @erco thought so but wanted to check first, the computer I’m connecting only has DB9 no USB :)

I am thinking of a project to use a terminal to send keyboard presses to Picaxe for controlling various pin states, and maybe eventually sending sensor data from picaxe back to the terminal. Is it ok just to use the standard serial circuit but instead of using the Axe026 cable connect direct to...

Great news, glad to see you back!

I hope he does return someday, I bought almost all of my picaxe kit almost solely because of his excellent posts, often times he was the difference between me getting a project working or not. Either way if you read this hippy thanks for all your help and I hope you are doing well.

Sorry to hear this, thank you for all your contributions over the years and best of luck.