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by ESP_Sprite
Sun Sep 27, 2020 7:27 pm
Forum: ESP32 Arduino
Topic: ESP32 Project Feasibility
Replies: 3
Views: 147

Re: ESP32 Project Feasibility

Agree that you could make the point that asking for feasibility is not the same as asking for an answer... also, if the project hasn't even started yet, he's free to ask around, right? In general, I don't see any big issues with programming that. Only thing I would note is that 3-color E-ink tends t...
by ESP_Sprite
Sun Sep 27, 2020 7:18 pm
Forum: ESP-IDF
Topic: ESP-IDF v4.1, cpu_start.c:551: undefined reference to `app_main'
Replies: 1
Views: 13

Re: ESP-IDF v4.1, cpu_start.c:551: undefined reference to `app_main'

Your main/CMakeLists.txt is not a valid component CMakelists.txt. (It looks like it's a copy of your project CMakeLists.txt file).
by ESP_Sprite
Sun Sep 27, 2020 7:12 pm
Forum: General Discussion
Topic: ESP32 and CR2032 battery
Replies: 15
Views: 20505

Re: ESP32 and CR2032 battery

Just spotted this and want to correct it; the rest of your post is pretty much correct: A resistor voltage divider is an 'option' as are LDOs (which essential are dividers). A resistor voltage divider? For an ESP32? Absolutely not. ESP32s can draw from a few uA up to 500mA. Keeping the voltage const...
by ESP_Sprite
Fri Sep 25, 2020 8:02 am
Forum: ESP-IDF
Topic: Regarding rmt_tx library to transmit rawData to Mitsubishi AC
Replies: 11
Views: 429

Re: Regarding rmt_tx library to transmit rawData to Mitsubishi AC

So He has already checked same AC with other board which is not ESP32 but different one in which he is able to send and receive data without any issue. So, He is facing issue while using with ESP32 only. That is why he has post request over here and provided details. If that's the case, he should h...
by ESP_Sprite
Fri Sep 25, 2020 7:43 am
Forum: ESP32 Arduino
Topic: Repeated restarts and stuck
Replies: 1
Views: 104

Re: Repeated restarts and stuck

What's the power supply for your board look like?
by ESP_Sprite
Fri Sep 25, 2020 7:34 am
Forum: General Discussion
Topic: ESP32 Powering Issue
Replies: 5
Views: 239

Re: ESP32 Powering Issue

Possibly the bulk output cap in the 5V adapter is to blame... it may make the voltage either ramp down or ramp up too slowly. In this case, you could switching out the 1K/100nF combo on the EN pin for e.g. an 10K/1uF combo. If that doesn't help, a voltage monitor IC should.
by ESP_Sprite
Thu Sep 24, 2020 11:57 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 382
Views: 172844

Re: What would you like to see in The Next Chip?

Some responses: Wrt DMA to/from PSRAM: I think the ESP32S2 already has this; if not, future chips will as we certainly have this. More pins on the ESP32: we are adding a few more, take a look at the ESP32S2 for instance; it has a few more GPIO pins than the ESP32. There's only a certain limit of pac...
by ESP_Sprite
Thu Sep 24, 2020 9:55 am
Forum: ESP-IDF
Topic: Synchronize audio output on two DevKitC devices
Replies: 2
Views: 103

Re: Synchronize audio output on two DevKitC devices

Phew... I think it may be possible to use the WS/BCLK pins and switch the I2S peripheral of one of the DevkitCs into slave mode and have a 'hard sync' between the two. That would need some tweaking of the actual hardware bits to pull off, though, not surprisingly the I2S driver does not support a mo...
by ESP_Sprite
Thu Sep 24, 2020 9:46 am
Forum: ESP-IDF
Topic: Watchdog stuck on CPU 0
Replies: 2
Views: 100

Re: Watchdog stuck on CPU 0

That looks like WiFi indeed is spinning on CPU0, which is odd... do you get a backtrace form the WiFi stack? Also, what version of esp-idf are you using? Anything special you're doing with WiFi?
by ESP_Sprite
Thu Sep 24, 2020 9:41 am
Forum: ESP-IDF
Topic: Regarding rmt_tx library to transmit rawData to Mitsubishi AC
Replies: 11
Views: 429

Re: Regarding rmt_tx library to transmit rawData to Mitsubishi AC

...how do you expect me to debug a communication issue with a random airco if you give me the specs of it? If I tell you my laptop is a Thinkpad T470S, can you tell me why it crashes sometimes? If any, please start with debugging this issue yourself instead of going 'doesn't work, let's head to the ...

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