Discussion Overview
The discussion revolves around troubleshooting issues with a TSOP 1738 IR receiver circuit designed to control a bulb using a household remote control. Participants explore the functionality of the TSOP receiver, voltage output expectations, and potential circuit modifications or alternatives.
Discussion Character
- Technical explanation
- Debate/contested
- Experimental/applied
Main Points Raised
- One participant describes their circuit design using the TSOP 1738 and HRM 3800, noting that pressing the remote does not produce the expected voltage change.
- Another participant suggests that additional circuitry may be necessary to achieve the desired voltage output from the TSOP.
- Some participants request oscilloscope waveform pictures and schematics to better understand the issue.
- One participant mentions that not all remote controls operate at 38 kHz and questions whether different remotes have been tested.
- Another participant advises monitoring the TX signal from the remote's IR LED and checking the output from the TSOP to analyze the waveforms.
- Concerns are raised about potential wiring issues with the TSOP, particularly regarding pin connections.
- A participant indicates that the TSOP should output a DC transition when functioning correctly and questions whether the original poster has a faulty component if the output remains at 0 volts.
Areas of Agreement / Disagreement
Participants express various hypotheses about the cause of the issue, and there is no consensus on a single solution. Multiple competing views regarding the functionality of the TSOP and the remotes remain unresolved.
Contextual Notes
Participants have not yet confirmed the frequency of the remote signals with an oscilloscope, and there are uncertainties regarding the wiring and component functionality in the circuit.