Search found 3529 matches

by WiFive
Sun Apr 02, 2017 2:04 am
Forum: General Discussion
Topic: [Video] ESP32 - The ESP32 IRC channel
Replies: 12
Views: 17346

Re: [Video] ESP32 - The ESP32 IRC channel

Is there any hosted log for this channel?
by WiFive
Sat Apr 01, 2017 8:33 pm
Forum: ESP32 Arduino
Topic: ESP32 with ACS712
Replies: 5
Views: 25975

Re: ESP32 with ACS712

You read 2900 which is near 2.5v. You should use voltage divider to halve output of acs712, keep in linear region of ADC, then calibrate and convert.
by WiFive
Sat Apr 01, 2017 8:15 pm
Forum: Documentation
Topic: Technical Reference I2S Clock config section is confusing
Replies: 11
Views: 33536

Re: [Documentation Release] ESP32 Technical Reference

rudi ;-) wrote:
if you read between the lines:
Still confusing in color.
by WiFive
Sat Apr 01, 2017 4:40 pm
Forum: General Discussion
Topic: App. upload UART2 how to: for ESP32 Adafruit demo board
Replies: 2
Views: 4773

Re: App. upload UART2 how to: for ESP32 Adafruit demo board

You may have to do the opposite. This happens in ROM code. But you could potentially add your own uart2 OTA loader in a custom 2nd stage bootloader or in firmware code.
by WiFive
Sat Apr 01, 2017 9:20 am
Forum: Documentation
Topic: Technical Reference I2S Clock config section is confusing
Replies: 11
Views: 33536

Technical Reference I2S Clock config section is confusing

For the configuration of I2S0 peripheral clock output: When PIN_CTRL[3:0] = 0x0, select and output module clock on the CLK_OUT1 in the IO_MUX Pad Summary; When PIN_CTRL[3:0] = 0x0 and PIN_CTRL[7:4] = 0x0, select and output module clock on the CLK_OUT2 in the IO_MUX Pad Summary; When PIN_CTRL[3:0] =...
by WiFive
Sat Apr 01, 2017 8:59 am
Forum: ESP-IDF
Topic: spi and rtos panics
Replies: 10
Views: 13502

Re: spi and rtos panics

Does msdelay use vtaskdelay? Probably want bigger stack size.
by WiFive
Fri Mar 31, 2017 8:42 am
Forum: General Discussion
Topic: RTC battery supply
Replies: 21
Views: 40500

Re: RTC battery supply

Depending on what is the goal... If the goal is to keep just the RTC working in the event of loss of power, then powering VDD3P3_RTC with a battery-backed supply is enough. If the goal is to also save main memory contents, then VDD3P3_CPU should be battery-backed as well (although this will likely ...
by WiFive
Fri Mar 31, 2017 1:13 am
Forum: Hardware
Topic: ESP32 Pin Layout (for QFN 5*5), Pin25, Pin26
Replies: 32
Views: 54395

Re: ESP32 Pin Layout (for QFN 5*5), Pin25, Pin26

So either pin 1 is on the 10-pin side and numbering is clockwise or pin 1 is on the 14-pin side and numbering is anticlockwise? Numbering shown from (rotated) bottom view by mistake?
by WiFive
Thu Mar 30, 2017 7:20 pm
Forum: ESP-IDF
Topic: Interact with a bluetooth 3.0 game controller
Replies: 2
Views: 5723

Re: Interact with a bluetooth 3.0 game controller

Probably none because Bluetooth classic is not implemented yet.
by WiFive
Thu Mar 30, 2017 6:35 am
Forum: General Discussion
Topic: RTC battery supply
Replies: 21
Views: 40500

Re: RTC battery supply

ESP_igrr wrote:You can connect both battery and main supply to the RTC via a couple of diodes (or a more complex switching circuit).
Does battery have to also connect to VDD3P3_CPU since
VDD3P3_CPU is also the input power supply for CPU
or is it OK to cut power to VDD3P3_CPU but not VDD3P3_RTC?