esp32-c3-0.42lcd's People
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markbirss yam889999 mpcnat drewbuschhorn eua quark72 abahmer yijenlu1971 rosslinc awa813 ariel-international pinknoiz koson roeladriaans finnjohnsen slonopotamus raxanathos desroinesp32-c3-0.42lcd's Issues
Can't use NeoPixel and OLED at the same time.
Hiyah!
Both the NeoPixel and the OLED demos work, and I combined their declarations together to use both, just like the graphic/LED demo the board arrives with.
But when I run the script, I keep getting a "[ 93][W][Wire.cpp:204] begin(): Bus already started in Master Mode." and the ESP32 restarts!
I think the error means one of the includes is grabbing the I2C bus, so Wire can't use it? I don't know why.
#include <U8g2lib.h>
#include <Adafruit_NeoPixel.h>
#include <Wire.h>
#define LED_PIN 2
#define SDA_PIN 5
#define SCL_PIN 6
U8G2_SSD1306_72X40_ER_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // EastRising 0.42" OLED
Adafruit_NeoPixel led = Adafruit_NeoPixel(1, LED_PIN, NEO_GRB + NEO_KHZ800);
void setup(void) {
Wire.begin(SDA_PIN, SCL_PIN);
u8g2.begin();
u8g2.clearBuffer();
u8g2.drawStr( 1, 30, "01Space");
u8g2.sendBuffer();
led.begin();
led.setBrightness(50);
led.setPixelColor(0, 255, 0, 0);
led.show();
delay(334);
led.setPixelColor(0, 0, 255, 0);
led.show();
delay(334);
led.setPixelColor(0, 0, 0, 255);
led.show();
delay(334);
led.clear();
u8g2.clearBuffer();
u8g2.sendBuffer();
}
void loop(void) {
}
Can you provide mechanical CAD measurements?
I am trying to make a PCB footprint in KiCad and it would be a lot easier if a STEP file or DXF file was provided which had the exact locations of pin holes and PCB edges provided.
BAT pin?
I have tested the bat pin… and min voltage to startup is providing 3.7 V… perfect for Lipos… I will be feeding 6V and want to know if the BAT pin will accept the 6V and regulate it?
Should I feed 6V to the BAT pin , 5V pin or 3V pin? Looking to maximize the 6V battery I will be using (2x 3V Coin Cells)
settings.png missing
readme states: "Other settings see settings.png." - could not find any settings.png in the repo
No Serial output
Not having any luck with Serial.print(). Lots of info on the web, but nothing seems to work for me. How do I get Serial.print() to show in Arduino IDE?
Purpose of third Diode Schematic
There are two diodes in the schematic pdf-file and these are visible also in the images next to the B-button. But next to the ESP32-C3 chip there is a third diode (part with SJ on it) - I think - what is this diode for?
Add charger for li-ion
BAT pin is cool, but charge via BAT pin is coller
4WAY_HANDSHAKE_TIMEOUT ?
Arduino 1.8.15
Chip is ESP32-C3 (revision 3) 0.42 OLED
Espressif systems: https://github.com/espressif/arduino-esp32 (Version 2.0.4, also reverted to 2.0.3)
Running: WiFiWebClient.ino
The device isn't connecting to either of my two WiFi spots. I've tried it with my two little purple pcb units with the same result:
Both ESP32-C3 2.0.3 (as instructed on this github) and the current 2.0.4 both failed with the following:
Attempting to connect to SSID: Thelma
[ 4623][D][WiFiGeneric.cpp:929] _eventCallback(): Arduino Event: 0 - WIFI_READY
[ 4659][V][WiFiGeneric.cpp:338] _arduino_event_cb(): STA Started
[ 4659][D][WiFiGeneric.cpp:929] _eventCallback(): Arduino Event: 2 - STA_START
[ 4668][V][WiFiGeneric.cpp:97] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
.......[ 8929][V][WiFiGeneric.cpp:360] _arduino_event_cb(): STA Disconnected: SSID: Thelma, BSSID: b0:7f:b9:85:9a:d7, Reason: 15
[ 8930][D][WiFiGeneric.cpp:929] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[ 8936][W][WiFiGeneric.cpp:950] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
I googled a bit, and seen this issue crop up in the past on older chips - it seems to be something that's "returned" on the C3.
One site suggested:
esptool --port COM21 erase_flash
C:\Users\sarah\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.3.0>esptool --port COM21 erase_flash
esptool.py v3.3
Serial port COM21
Connecting...
Detecting chip type... ESP32-C3
Chip is ESP32-C3 (revision 3)
Features: Wi-Fi
Crystal is 40MHz
MAC: 84:f7:03:67:e0:60
Uploading stub...
Running stub...
Stub running...
Erasing flash (this may take a while)...
Chip erase completed successfully in 18.7s
Hard resetting via RTS pin...
It flashed, but it didn't work.
I've also walked up to the access point with the device - in case the signal strength was bad... no change.
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