Schematic diagram showing ESP-01 vs ESP-01S physical differences (antennae at bottom - but not drawn):ESP8266EX detailsThe ESP8266EX chip, fitted to both ESP-01 and ESP-01S, is a simpler version of IOT ESP8266 chips but the most important point is that the chip lets you do standard ...
GPIO0 and GPIO2 need to have pull-up resistors connected to ensure the module starts up correctly. The ESP-01S has 12K resistors on the board for GPIO0, RST and CH_PD (see the schematic above and alsohere,local copy here) Step 4: Using the ESP-01S and ESP-01 Leds The ESP-01S on...
Seeed Studio XIAO系列是小型开发板,共享类似的硬件结构,尺寸实际上是拇指大小。这里的代号“小”代表它的一半特征“小”,另一半将是“羊角面包”。 Seeed Studio XIAO ESP32S3 Sense集成了摄像头传感器、数字麦克风和SD卡支持。结合嵌入式ML计算能力和摄影能力,这款开发板可以成为您开始使用智能语音和视觉AI的绝佳工...
About the eeprom thing, please investigate further, especially the schematic of your device, to see if pins 9/10 are connected in some odd way to something. I seem to remember that using them required cutting a connection on the PCB somewhere, although I could be confusing this with some 8...
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Restore or Upgrade Firmware on ESP8266 (ESP-01) Module Using Arduino UNO: The ESP-01 module that i used originally came with older AI Thinker firmware, which limits its capabilities since many useful AT commands are not supported. It is generally a good
esp32dude Participant J-Link works with dev boards like ESP32-WROVER. The issue is, I have a custom board and only have the JTAG interface. Maybe you can have a look at the ESP32 schematic if you see any issue? This reply was modified 4 years, 11 months ago by esp32dude. ...
For the sake of completeness I'll add that I also had this problem, except it occurred for me when powering the NodeMCU with a 12V adapter at the same time as being plugged into USB. I saw the shottky diode on USB in the schematic and assumed it wouldn't be a problem, but it did...
Wire the BME280 sensor to the ESP32 or ESP8266 default I2C pins as shown in the following schematic diagrams. ESP32 Recommended reading:ESP32 with BME280 Sensor using Arduino IDE (Pressure, Temperature, Humidity) ESP8266 NodeMCU Recommended reading:ESP8266 with BME280 using Arduino IDE (Pressure...
I have connected an ESP PSRAM64H chip to an ESP32 WROOM board (38 pin, with SPI1 pins exposed (GPIO6, 7, 8, 9, 10)) following the same pin connections as for ESP32 WROVER B, as shown in the schematic below: PSRAM64HCOnnectedToESP32WROOM.jpg (21.75 KiB) Viewed 4849 times ...