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| Three wires connect to the Arduino, GND, +5V and Signal to Analog 0 |
Introduction
One out of three microphones with amplifiers has been soldered. These microphones are included in the
Robot Mapping project and are part of the "radio beacons".
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| The Electret Microphone and LM386 Amplifier (200x) |
I did not really plan the layout of the components, I just added one component after another. Maybe I will use
Fritzing for the next one. I really must learn on how to work more professional!
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| Soldering went ok, design was ad-hoc |
For once the soldering worked out ok, these prototype-boards are very cheap and low-quality.
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| The microphone next to one on a breadboard, only difference is the resistor that got replaced with a trimpot. |
The initial test seemed ok.
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