NE555 Timer Schematic Design

I need the IR LED output modulated at 38 kHz, not just a steady 2-second pulse.

Thought for 40 sec

You want the NE555DR-based schematic updated so the IR LED is driven with a 38 kHz modulated output instead of a steady 2 s pulse.

I updated the plan to:
1. define PIR/TSOP1838 roles,
2. add the 38 kHz modulation stage,
3. connect the sensor and IR LED driver paths,
4. verify the triggered behavior.

Click Start on the plan bar to proceed.

lakynguyen

ok start

Thought for 6 sec

flux

The plan is ready to run.

Please click Start on the plan bar to begin execution.
If you want, I can also update the plan first with any last-minute requirements like:
- supply voltage
- IR LED current target
- PIR output polarity

Set IR LED current

Define supply voltage

Set PIR polarity

Reviews

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