Search found 11 matches

Hi all,

@Mike Walne:
Apologies. This was an error on my part WRT the post. My relay is the G5Q-1 and indeed it is an SPDT based relay. Thanks for clarifying which of the pins is the COMMON.

@T ...

Hi all,

@ezflyr:

thanks for the reply.

First, what is the coil voltage of your relay? Are you sure? OK, with your relay out of the circuit, use a power supply of the correct value to activ ...

Hi all,

I've purchased the LM335 and hooked it up as per figure 15 in the datasheet - http://www.ti.com/lit/ds/symlink/lm335.pdf. The voltage on the output is 2.98v which is in and round the expect ...

Hi alan

I believe the PIC is running at the correct speed as the LED I call REL_1 in my code (i.e. the relay connected to the optocoupler which is connected to PIN_C1 ) is toggling at the correct s ...

Hi Ttelmah,

Thanks for the reply.

1) If a pin won't do what you expect, look what else is on it. In your case, RC1, is the timer1 oscillator input. If you look in the data sheet at the I/O summa ...

Hi all,

I’m working on driving a relay i.e. the Omron G5Q-1A with a PIC18F2580 using a Darlington transistor array specifically the ULN2803A. I’m utilising the ULN2803A as I need to drive more ...

Hi temtronic,

thanks for the reply.

Depending on the application,you have to decide if accuracy of a wide range is critical( say +-.25*C) or not(+-1*C) is OK.Also how 'fine' a reading has to b ...

Hi Ttelmah,

Ah .. I see but just to confirm I fully understand using the LM335 with regards to my target range of -30 degrees Celsius to +45 degrees Celsius I'm I right in saying that the respectiv ...

Hi all,
Thank you for all the comments and suggestions.
@Gabriel:

Be sure to connect the LM35 accordingly to measure -temps.

the datasheet should show a diagram with 2 diodes. if i remember c ...

Thanks Gabriel. I'll have a detailed look at your proposal tomorrow morning

Hi everyone,

I'm slightly new to the world of A/D conversion especially using the CCS C compiler so forgive me if I'm asking an already answered question (I'll indicate later in the post the resea ...