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4.71 out of 5
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  • 05/02/2021

    Very good!

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  • 06/04/2021

    With this module, you can record a message by pressing one button and then play it back on a speaker connected to the module by pressing a second button. The module works with pulse width modulation (PWM) and the conversion of this digital pulse train into an audible signal is left to the inductive load and mechanical inertia of the loudspeaker. A cursor measurement on the oscilloscope gives an impression of the frequency of the PWM signal, which is around 2.7 MHz. We have recorded some music samples from the album 'The Wall' by 'Pink Floyd' and found a maximum recording time of 2 minutes and 16 seconds. So that's pretty much what the specifications promise.

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  • 11/06/2021

    fast leached

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  • 21/02/2021

    Everything top

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  • 28/01/2021

    Nice toys

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  • domVIP3

    Pack well

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  • 04/01/2021

    I have been playing with options to control playback of predefined messages under MCU control. My basic goal is the polar opposite of a watch-dog timer. Rather than an automatic reset if the software encounters an unrecoverable error, I want the software to lock up and give some sort of error indication. I usually use an SD card to record a message and a flashing "Fault" LED to draw attention to it. My aim is to supplement the flashing led with an audible message. I struggled a bit with this module. I'm sure it could be made to work, but it all got too hard and I put my energy into other options. At this point, I am thus unable to recommend it.

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