Hi people i want to ask a stupid simple question but is better do ask than die stupid. I want to make the following circuit http://dayzlab.files.wordpress.com/2011/10/lm335.jpg i have no breadboard so the reistors i need to connect them one after another ? What does the N on the sensor in the picture mean ? What leg of the sensor should i connect to pin 0 ?
What does the N on the sensor in the picture mean ?
No idea, does it matter?
What leg of the sensor should i connect to pin 0 ?
Well the diagram shows the center one, do you think it should be any different?
so the reistors i need to connect them one after another
Yes it is called connecting them in series, this is so you can get a value of 1K1, resistors in series add up.
i dont get why isn't the 3rd leg used and how to solder without a breadboard
i dont get why isn't the 3rd leg used
You only need two wires for this chip but the manufacturers decided to put it into a 3 pin package. It is no unusual to have no connect pins on chips.
how to solder without a breadboard
Just link the resistors together by bending two hooks and squeezing with the pliers, that deals with the mechanical strength. Then apply a touch of solder to make a good electrical join.
I hate bread board and never use, it's too unreliable.
sorry for beeing stupid but if i connect the resistors to the middle leg what goes in the pin 0 should i attach another wire to that leg?thanks
most likely you will need a wire... the pin on the IC will be quite small and will have an unreliable connection in the header on the arduino board.
should i attach another wire to that leg?
Yes you can attach as many wires as you want to any point in the circuit to get them to where they need to go.
opc0de:
Hi people i want to ask a stupid simple question but is better do ask than die stupid. I want to make the following circuit Dayz Lab: Image i have no breadboard so the reistors i need to connect them one after another ? What does the N on the sensor in the picture mean ? What leg of the sensor should i connect to pin 0 ?
if you have no breadboard how are you planning to do this? I would suggest you invest in a breadboard and try to build circuits on breadboards before you solder them.
The N in the picture is just how the breadboard view draws it. It is a LM335 in a TO-92 package so it looks like most transistors. You don't need to connect the first pin, the circuit will function fine without it.
I would suggest you invest in a breadboard and try to build circuits on breadboards before you solder them.
I would suggest the opposite. While they can be quick they are an other source of problems and judging by the posts here they are a major source of unreliability.
this is how lady ada connects a 36
using 3 wires ?
http://www.ladyada.net/learn/sensors/tmp36.html
can the lm335 be connected with 3 wires ? I have one wired as the ladyada and it increases in voltage as the temp goes down
Ok just looked at the data sheet and that third pin is an optional adjust pin not a no connect as I said before, sorry.
Still it will work fine without connecting anything to it so my advice still stands.
All it will do is to slightly alter the current output so you can calibrate the sensor, or use it on a wider range of supplies. See page 5 of the data sheet.
Grumpy_Mike:
I would suggest you invest in a breadboard and try to build circuits on breadboards before you solder them.
I would suggest the opposite. While they can be quick they are an other source of problems and judging by the posts here they are a major source of unreliability.
this makes no sense. the whole point of a breadboard is for prototyping. what do you do to prototype a circuit?
what do you do to prototype a circuit?
I build it on a scrap of strip board and don't cut the wires off short, then I can recover the components and use them again.