218
2.90 IR control
Circuit 193:
Simple IR transmitter
Setup information
Install the diode, the resistor and the electrolytic capacitor as shown in
Fig. 2.193
followed by the jumper
wire. Check the placement on the board again and only then connect the battery.
Components required:
1 x IR diode,
1 x 4.7 k
Ω
resistor,
1 x 10 μF electro-
lytic capacitor,
1 x breadboard, 1 x 9V
battery with clip con-
nector
Fig. 2.193:
Simple IR trans-
mitter
Experiment
You can connect an mp3 player or the speaker output of a portable radio to the input. Build the circuit
described below to test the circuit. Now you have got an IR transmitter and an IR receiver for the transmis-
sion of LF signals.
The circuit diagram for this experiment is shown in Chap. 3, Fig. 3.193.
Summary of Contents for ELECTRONICS EXPERIMENTS BOX
Page 4: ......
Page 265: ...267 Fig 3 56 Cir cuit 56 Audio limiter Fig 3 57 Circuit 57 Amplifier for a storm detector...
Page 269: ...271 Fig 3 64 Circuit 64 Stabilizer for 1 9 V Fig 3 65 Circuit 65 Stabilizer for 2 5 V...
Page 275: ...277 Fig 3 80 Circuit 80 Quiztimer 30 seconds Fig 3 81 Circuit 81 Handy diode tester...
Page 315: ...317 Fig 3 179 Circuit 179 HF generator 150 kHz Fig 3 180 Circuit 180 HF generator 420 kHz...
