Recent content by avner

looks to me like they are the same. BUT When i use the XP Hyperterminal, also set exactly like the others to 2400,n,8,1 The first "A1" arrives like the other terminals (as "A" ok, but the "1" get changed.) however everything else after that, on the same connection (of the listen port)...

Hi, my goal is to send a text message from a webpage or server to a picaxe connected to a router (and internet) the picaxe would then just display it on a LCD display Any idea regarding where to start ? is there another solution except of the expensive Picaxe net ?

Hello. I would like to be able to run a command (pulsout) on absence of power supply (at the moment of dis-connecting power) it can have some delay, and I don't care at what voltage it triggers, i just need a non-accurate way to send a pulse before there is no more power at all. The problem...

wooho, that looks promising using a 20X2 (erased) = the actual raw pic18F14k22 with 16Mhz internal OSC, with 4xPLL which is 64Mhz, using an hardware interrupt and constantly checking an analog signal on the main loop, I get this as the maximum latency: we would be able to better know what is...

Just wanted to share.... I just destroyed an old 20M in favor of getting a PIC16F677. I spent the day learning about all the registers, counters and "under the hood". This is the result of a simple if (pin1=1) then high pin2 for the shortest pulse possible, At 4Mhz (couldnt succeed to select...

PIC looks promising; I just took a 08M which is a 12F683 and tried to program it (had a chinese programmer i never used before) took me whole day to figure out how to basically do that: main: if pin1=1 then high pin2 pause 1000 low pin2 endif goto main doing that, at 4Mhz yields a maximum...

Hello, I'd like to know, For example lets take the 08M. is the command time slower than the parallel PIC that 08M was before loading the picaxe firmware ? What i'm worried about is the delay between detecting an interrupt to triggering a pulsout. Thanks !

Hi, I have an input pin pulled high, with an interrupt to detect its low state. I have two ways of triggering the input - a button that shorts that leg to ground, and a camera trigger remote that is connected exactly to the 2 pins of the button, so they both should do the same. the thing is...

i tried to draw that from my head from what i remember. the minimum will work for sure. but i'm not sure of the maximum part, something seems tricky when i calculate this, like if the main dial has some parabolic shape

Hi I am looking for a way to setup 3 potentiometers, so one of them is used as the "power dial" one of them set the maximum value, and one the minimum. the thing is, that it is not a voltage divider. which means the ohm value is critical all the way. (not just the proportional 'travel' of the...

Here it is. please use this as a general idea of the functions. i still havent built it ! its just a concept scheme my question is just regarding the software part. thanks

Hi. I am trying to program a picaxe that will: output A: charge a capacitor to a given voltage, with feedback from ADC 1 input. output B: pulse every X seconds that will make the capacitor discharge. X is set by a pot on ADC 2. i need a software that will: 1- send the timing pulses to...

Friends. thanks for your help. i have the chips and transformers on the way. meanwhile, this is a transformer that i also have: it is a small 25mm transformer used to charge capacitor to 240v, from 6v input. it uses a small transistor (2sd882 works good) with the base driven from the...

I've read all of the article. i now understand the workings. no problem to wind them on-demand. this is the current transformer i have ordered. they made it to match 12v to 240v, 96 watts (8A on the primary) what can you tell about it ? will it work well as flyback converter ?

added dead time here is again the gate driver output open circuit