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thank you for following me.
yup the thermometer design from Hakko stayed pretty much the same and you can find clones like mine for very little on ebay,
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That's an output with the signal coming from the bluetooth module.
Led was connected to the pads of the already existing LED. Any 3mm red/green led should work, the current limiting resistor is already in place.
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I wouldn't recommend doing that. We are talking about 2.4GHz here. A simple wire soldered to the antenna trace will likely affect the tuned circuit and cause worse reception.
thank you for the suggestion!
Building a 2x25W Bluetooth ...View Instructable »
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