PICAXE-08M, whats wrong with it....(picture)

[rancid rock]

hey

I made this PICAXE-08M a while back and there is something wrong with it...

could anyone please see to the attached images and help

thanks.

 

[Nigel Goodwin]

How can people be expected to offer advise on a programmable chip, when we don't know if it's programmed correctly, or even what it's supposed to do, and you don't even mention what's wrong with it?.

 

[rancid rock]

no no no no, dude it isnt programmed,

theres something wrong with the way the parts are soldered, like wrong legs or wrong resistor values

 

[Nigel Goodwin]

no no no no, dude it isnt programmed,

If it's not programmed it won't do anything!.

theres something wrong with the way the parts are soldered, like wrong legs or wrong resistor values

Why?.

 

[rancid rock]

lol hmmm... your being very difficult

i know it wont do anything, but at the moment it dosent even work

what do u mean why? obviously i dont know what the problem is for sure, thats why i hoped an expert could see by looking at it.

 

[Papabravo]

Nigel,

Is this another one of those secret comedy writers you have on retainer?

 

[rancid rock]

spare me your inside jokes

 

[Nigel Goodwin]

lol hmmm... your being very difficult

i know it wont do anything, but at the moment it dosent even work

what do u mean why? obviously i dont know what the problem is for sure, thats why i hoped an expert could see by looking at it.

I'm somewhat bemused by this? (and so are my secret team of comedy writers ) - but you haven't programmed the chip to do anything!, so what are you expecting it to do?.

If you buy a blank video tape, and put it in your VCR, do you expect to get a film from it? - NO - because it's blank, so why do you expect your blank PIC to do something?.

 

[Papabravo]

spare me your inside jokes

Spare us your sense of entitlement, and the behavior of a lazy sponge.

 

[rancid rock]

omg.....no voltage runs through it even,

do u see what i mean now

gosh its like a duet.

 

[JimB]

..no voltage runs through it even

OK I will make up the trio...

Then why not use your DMM and trace the supply around the circuit board to see where it stops?

JimB

 

[rancid rock]

ok thanks JimB.

umm..although i just got a pm about the resistors.

apparently they are the right resistors but round the wrong way or in the wrong order or something.....he didint specify.

is there a way u can see if they are wrong by looking at the pictures?

 

[William At MyBlueRoom]

We may have found mstechca mk2

Might give us a clue to what it's supposed to do?

Maybe sitting and doing nothing is how it's supposed to work. You could keep applying voltage till the magic smoke comes out. Did you know all electronics works on magic smoke? If you release it, it will stop working.

apparently they are the right resistors but round the wrong way or in the wrong order or something.....he didint specify.

Better start hitting the books in your school, someones pulling your leg; resistors are not polarized. Current can flow through them in either direction.

PS those red & black wires have to be between 2.5v & 5v else poof goes the PIC (hope it's not a 9v clip at the end)

 

[dknguyen]

Ya know...a schematic is much more useful than photos of the circuit...easier to analyze.

What do you expect it to do anyways if you haven't programmed it for anything? Do you have a voltage regulator? How exactly are you trying to get 5V to the PIC?

What do you mean no voltage is running through it? The voltage measured across the +V and GND pin of the PIC is a floating voltage (constantly changing)? THat would mean there is a break between the traces going from the battery to the PIC. It's really hard to tell what you mean when you give so little detail and osbscure photos. No one is going to sit down and draw out the schematic themselves from your photos.

 

[Paul Obrien]

https://www.electro-tech-online.com/custompdfs/2006/07/axe090.pdf contains the circuit, this board is the PIC programmer and it only shows 2 resistors, 10K from serial in to ground and 22K to PIC pin2(ser in).. There is nothing to check, although I don't like using the sleeve of a 3 pin plug for data, that's where the shield (gnd) should be.

 

[Hayato]

I see some bad solders there.

 

[rancid rock]

ok thx....heh

umm....the resistors were in the wrong order.