Freetronics Forum

Hi Mike, For memory all I did in the end was to get hold of the datasheet from here --> http://www.bosch-motorsport.de/media/catalog_resources/Temperature_Sensor_NTC_M12_Datasheet_51_en_2782569739pdf.pdf Then worked out the voltage divider needed to get a reasonable voltage at the arduino for the te...

Hi John, found out it was at my end. The ISP was not letting my mail through from the account I sent the email from. Sent it from my work account and it all worked
Thanks for your support

G'day Johnb and everyone else. The email bounced with the following message Your message did not reach some or all of the intended recipients. Subject: New servos as found in freetronics experimenters kit Sent: 24/05/2014 9:41 AM The following recipient(s) cannot be reached: 'support@freetronics.com...

You might be better off using interrupts.
See http://arduino.cc/en/Reference/attachInterrupt
and http://playground.arduino.cc/Code/Interrupts

The FSS1 relay is a solid state relay. I don't think you would need a bleeder resistor in parallel with it. This relay doesn't have a coil in it so the transistor doesn't need any protection from high voltage spikes when the relay is switched from on to off. That is when you usually use a bleeder re...

G'day All, Was wondering if Freetronics could supply me with extra servos as found in the experimenters kit? They are the smallest I have seen and will fit a project I have in mind quite well.
Regards,
Dave J

I have since researched and found that this is the correct way of interfacing with a thermistor such as a coolant temperature sensor for an automotive application. To get a readout temp you would need to use the Steinhart-Hart equation and find the values for A,B and C See here --> Steinhart-Hart eq...

Hi All, I want to be able to sense temperature of an engine using a standard 40 - 120 degree VDO sender unit. I want to use ATTiny85 with AnalogInput(). The docs use a pot with one end connected to +5v, the other connected to GND and the wiper connected to an analogue pin. Could I do it like the att...

G'day All, This is a post on what not to do. I decided one day to hook up a transistor to pin 13 of my freetronics eleven. This was ok, I made sure I had the right transistor and had the load working on it properly with all the connections correct. The only thing I didn't do was to put a resistor in...