Search results

Thanks for your detailed explanation - good analogies presented. In my present situation, I did need to know the likely output voltage but understand that in many applications this is of no significance. I am now fully prepared for battle!

Now we are smoking! This is very useful information - thank you.

I am not sure whether I am blind, stupid or just being a numpty (or some combination of these). I have been working on the assumption that the output pin voltages are equal to the power supply voltage as, despite numerous attempts, I have not been able to confirm this from the Picaxe user...

Thanks for your input. All valid arguments. However, in this case I am purposefully seeking a bright light output.

Thanks for your input. I need the LED’s to be bright. As I will be driving about 8 of them, I will be using a 7 channel Darlington chip so there is no need to consider overloading of the Picaxe chip.

Thank you for your input. I shall utilise the info when I use multiple coloured LED’s.

It is good to hear that my understanding is correct. I did consider driving the LED’s at a lower current of say 15mA but also thought that 10mA would reduce the brightness too much ( but have no evidence to back it up - just gut feel). I have furthermore always understood that redcLED’scshould...

It is good to hear that my understanding is correct. The data sheet states that they are rated for a continuous 20mA at 2V so I have based my design on this. Understanding most data sheets is another matter! I never considered that driving the pin at 20mA may be pushing it as I got smokescreened...

Hopefully someone can help with what should be ultra-basic. A 330R current limiting resistor is always indicated in the user manuals for driving an LED. This seems very high. My understand for a general purpose 5mm Red led is that there is a 2v drop across the LED and the operating current is...

Thanks for your additional guidance - will check it out tomorrow when my mind is clearer!!

thanks for your reply. I have had a quick look at your reply and am somewhat confused. I am a novice - but will look in more detail tomorrow. I may need to send you my code to see if it makes sense to you. If it does then I will assume the coding as correct !!! Thanks again.

Thanks for your reply. Chip is 18M2 and C.0 is an Input, so it would be great to get more guidance. Thanks again.

Help with the COUNT command would be really appreciated. I am a novice!! My program is supposed to measure the number of pulses on an input pin over a 10 second period and then calculate the frequency of the input signal. The command used is : count C.0,10000,w0 ( input pin is C.0 /...

Hopefully somebody can help with the SEROUT command. Background : I have only done one program on an MCU and it has been extensively tested using the Picaxe Editor software using the “Simulate” facility. This has been successful. However, for extending the capability of my program, I require...