I wanted to show off the Phlute. Most people can recognize when two tones are in the range of phone touchpads, but I wanted to show they were accurate; otherwise it was just pretending to be a red box. I had a few DTMF decoders and some microphone modules in my stock. I had no idea if the amplifier would overpower the decoder or if I would need to attenuate the signal. It was also necessary that the circuit had no programmable hardware to show my Phlute did not require software to assist inexpensive decoders.
I had never used the decoders, so I knew little about their outputs. I connected a 3mm LED to each output and grounded them. The microphone module had an analog output, which I connected to the decoder board's input. I powered everything with a USB power supply.
The electronics powered up safely, and I tried to trigger it with Phlute, but it was late, and I did not want to disturb anyone. I used a DTMF generator app and confirmed that the decoder could "hear" the tones. The LEDs followed a binary pattern for all the buttons except D. The onboard LEDs flickered, but the outputs remained lit.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2023-10-
I had never used the decoders, so I knew little about their outputs. I connected a 3mm LED to each output and grounded them. The microphone module had an analog output, which I connected to the decoder board's input. I powered everything with a USB power supply.
The electronics powered up safely, and I tried to trigger it with Phlute, but it was late, and I did not want to disturb anyone. I used a DTMF generator app and confirmed that the decoder could "hear" the tones. The LEDs followed a binary pattern for all the buttons except D. The onboard LEDs flickered, but the outputs remained lit.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Completed projects from year 9
Completed projects from year 10
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2023-10-
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