Re: schematic vs breadboard
elesser wrote:
Hi everyone,
I am trying to build a simple A/D convertor from a schematic on my
breadboard.
Now, I've built something, but I'm not sure that it's wired
correctly...
The following link will show a picture of my breadboard and from the
schematic:
http://stunix.netfirms.com/AD/index.htm
Note that the red wire is the ANALOG IN and the black wire connected to
the scope is the PULSE output.
Would anyone be able to tell me if there's something wrong with the
wiring?
Thanks!
Your chip is in backwards!
Pin 1 should be the pin with the dot next to it.
Also, your 0.1uF capacitor is shorted by the strip in the board.
Haven't really checked for other problems, they were the two obvious
things.
Dave :)
.
Relevant Pages
- Re: 32kHz crystal issues
... the Vdd line doesn't show any glitches in sync with the ... GPIO pin. ... Capacitively, pin-to-pin, but principally via the breadboard I'd ... while opposite polarity produce a glitch). ... (sci.electronics.design) - Re: schematic vs breadboard
... Now, I've built something, but I'm not sure that it's wired ... The following link will show a picture of my breadboard and from the ... Pin 1 should be the pin with the dot next to it. ... pin 5 where it should be, and is indeed shorted by the breadboard connector. ... (sci.electronics.basics) - Re: schematic vs breadboard
... elesser wrote: ... I am trying to build a simple A/D convertor from a schematic on my ... Now, I've built something, but I'm not sure that it's wired ... The following link will show a picture of my breadboard and from the ... (sci.electronics.basics) - Re: schematic vs breadboard
... I am trying to build a simple A/D convertor from a schematic on my ... The following link will show a picture of my breadboard and from the ... Pin 1 should be the pin with the dot next to it. ... your 0.1uF capacitor is shorted by the strip in the board. ... (sci.electronics.basics) - Re: PIC suggestions needed
... Other good PICS for getting started with are the 16F886 if you want a 28 pin part and the 16F887 for a 40 pin part. ... All are easily breadboardable with the PICKIT2 if you make up a simple 8" cable with a 0.1" 6 pin header plug on one end to fit the connector on the Pickit 2 and individual pins to plug into the breadboard on the other. ... You will save $15 *not* getting the kit with the demo board which can be well spent on few PICS, a couple of 4Mhz crystals for when you need a spot-on clock frequency and a strip of 0.1" header pins and some small bore heatshrink sleeving to make up the cable you will need. ... All pins are brought out to accessable through hole locations so you can add some turned pin socket strips and patch it into any project you are breadboarding, space to put a crystal, or resonator for the clock, space for a 32 KHz crystal for Timer 1 for RTC applications and a surface mount prototyping area with more than enough space to assemble a MAX232 or similar level converter if you want an on-board PC compatible serial interface and two 11 pin + power and ground locations for headers to get signals in and out from the prototyping area. ... (sci.electronics.basics) |
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