Connecting TSOP38238 IR Receiver to AXE020 + 28x1
January 28, 2013
I am using a Picaxe 28x1, and AXE020 project board and a TSOP38238 IR Receiver
I have recently completed my version of the Start Here Robot, and want to upgrade it so that I can remote control it. Instead of spending £10+ on the kit from picaxe direct, I have dug out an old all-in-one remote, and ordered a TSOP38238 IR Receiver from Ebay (clicky for datasheet, see also application overview) but I am a little bit confused over how to connect it up and am hoping someone with greater knowledge can help me in my noobiness :)
The picaxe ir upgrade kit describes connecting everything upto the IR Area on the AXE020, but am I correct in thinking that I can connect the pins to any V+, GND and digital input pin?
According to the datasheet for the TSOP38238, I need a resistor between the V+ pin on the board and the V+ pin on the component, and a capacitor between V+ and GND, HOWEVER, it states that "R1 and C1 are recommended for protection against EOS. Components should be in the range of 33 Ω < R1 < 1 kΩ, and C1 > 0.1 µF". EOS I have discovered is Electrical Over Stress, IE too much power, but since the component is rated upto 6V, and I am using 3 x AA(non rechargeable) batteries @ max 4.5V I think I dont need them? Is that correct?
The googling I have done has come up with this tutorial (for arduino) and this product page on adafruit using the exact same IR Receiver as me, wiring directly to the board etc with no resistors, capacitors etc, but other posts I have seen say otherwise......I want to be sure before I connect everything up so that I dont fry anything!
Thanks in advance for your help :)