Waking up ESP8266-02 from Deep Sleep

Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)
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Re: Waking up ESP8266-02 from Deep Sleep

By swede
- Sat Apr 16, 2016 10:41 am #45585 There is a pull up on CH_PD. I'll try adding one to RESET.

Part of my issue is electrical. I'm trying to trigger this with a pulse from a little fan that puts out 1V, 3mA, when air blows on it.

Any ideas on better trigger methods when it is blowing air you are trying to track?
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Re: Waking up ESP8266-02 from Deep Sleep

By swede
- Sat Apr 16, 2016 2:52 pm #45604 Thanks for the ideas. I think I've figured it out.
Both GPIO 0 and 2 need to be high at the moment of reset. I had driven one low so I could monitor elapsed time in the process.
I'll have to find another way. Either buy ESPs with more GPIO broken out, break one out myself, or see if I can monitor for HIGH and then drive it LOW at the end of the process. :arrow:
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