Search found 6 matches

by rosmianto
Mon Jul 06, 2020 1:05 am
Forum: Hardware
Topic: Is ESP32 a microcontroller itself? What about its CPU Xtensa LX6?
Replies: 2
Views: 231

Re: Is ESP32 a microcontroller itself? What about its CPU Xtensa LX6?

I think it's easier to see as a table:
tableesp32.png
tableesp32.png (7.46 KiB) Viewed 190 times
By mentioning Arduino I mean atmega328p-based Arduino. Of course, there are any other MCU used, I'm just giving a context.
by rosmianto
Mon Jul 06, 2020 12:56 am
Forum: Hardware
Topic: D2WD Processor Doesn't Run
Replies: 2
Views: 219

Re: D2WD Processor Doesn't Run

Could you show us your schematic? I don't know what's happened, but putting an external pull-up resistor to GPIO0 should make things better.
by rosmianto
Fri Jul 03, 2020 1:33 pm
Forum: Hardware
Topic: Deep Sleep Current too high (1-4 mA), even without LDO
Replies: 3
Views: 554

Re: Deep Sleep Current too high (1-4 mA), even without LDO

Try to remove those decoupling capacitors temporarily and see if it's improved your current consumption, sometimes faulty caps have unacceptable current leakage for low power environment. I built a minimal setup for ESP32 and I can easily achieve sub 10uA (around 2.5uA to be precise).
by rosmianto
Sat Jun 29, 2019 12:33 pm
Forum: Hardware
Topic: ESP-WROM-32 + SPIRAM is now possible
Replies: 7
Views: 11337

Re: ESP-WROM-32 + SPIRAM is now possible

Recently Electrodragon started selling IPS6404L-SQ-SPN (priced only 0.8 US$ !), a SPIRAM (psRAM) chip (8MB) with characteristics similar to Espressif's ESP-PSRAM32 ( Data sheet ). As this is a 3.3V device , it can be used with ESP-WROOM-32 and all boards using 3.3V Flash . I've tested the chip on A...
by rosmianto
Tue Jun 04, 2019 6:43 am
Forum: ESP32 Arduino
Topic: BLE client disconnect causes reboot
Replies: 2
Views: 1127

Re: BLE client disconnect causes reboot

Similar problem: viewtopic.php?t=6543

Go to advanced search