[flower carving experience] 15 try to build the Arduino development environment of beetle esp32 C3

Just received this development board very mini, length 25mm, The width is only 20.5mm.

Beetle ESP32-C3 It's based on ESP32-C3 RISC-V 32 Main control board of bit single core processor chip , For the Internet of things (IoT) Designed for equipment .Beetle ESP32-C3 In the volume of only coin size, it leads to up to 13 individual IO mouth , Don't worry about making projects IO Not enough mouth , At the same time, the main control board also integrates the lithium battery charging management function , It can be directly connected to lithium battery , No peripheral modules are required , At the same time, ensure the application volume and safety .Beetle ESP32-C3 The supporting expansion board does not increase too much volume , Leads to more power , It is more convenient to weld when making projects , On board GDI The display interface solves the wiring trouble when using the screen .

Beetle ESP32-C3 Support Wi-Fi and Bluetooth 5 (LE) Dual mode communication , It reduces the difficulty of equipment distribution network , It also supports Bluetooth Mesh (Bluetooth Mesh) Agreement and Lexin Wi-Fi Mesh It can achieve higher communication stability and larger coverage , It is suitable for a wide range of Internet of things application scenarios .Beetle ESP32-C3 Have a detailed example tutorial , Through the tutorial, you can easily use the wireless function of the controller , Connect to alicloud 、IFTTT And so on the Internet of things platform , meanwhile DFRobot The mall offers thousands of sensors and actuators , These sensors and actuators also have detailed tutorials , So you can easily build your own IOT system .

Beetle ESP32-C3 have access to Arduino IDE、ESP-IDF、MicroPython Programming （MicroPython Tutorials follow ）,C Language 、python Can easily manipulate the hardware .

features
Ultra small volume , Dimensions only 25*20.5mm, On board lithium battery charging management , Charging and discharging are safer , Supporting expansion board , Production project 、 It is more convenient to use the screen ,RISC-V 32 Bit kernel , Support Wi-Fi and Bluetooth 5 (LE) Dual mode communication .

Parameters
1、 The basic parameters
Working voltage ： 3.3V
Type-C Input voltage ： 5V DC
VIN Input voltage ：5V DC
Working current ： 25mA
Maximum charging current ： 400mA
working temperature ：-40~105℃
Module size ：25x20.5mm
2、 Hardware information
processor ：32 position RISC-V Single core processor
Main frequency ：160 MHz
SRAM：400KB
ROM：384KB
Flash：4MB
RTC SRAM：8KB
The clock ： External location (32 kHz) Crystal oscillator 、 Built in fast RC Oscillator clock 17.5 MHz( The adjustable )、 as well as PLL The clock
USB: USB 2.0 Can be up to 12Mbit/s
3、WIFI
WIFI agreement ：IEEE 802.11b/g/n
WIFI bandwidth ： 2.4 GHz Band support 20 MHz and 40 MHz bandwidth
WIFI Pattern ：Station Pattern 、SoftAP Pattern 、SoftAP+Station Patterns and hybrid patterns
WIFI frequency ：2.4GHz
Frame aggregation : TX/RX A-MPDU, TX/RX A-MSDU
4、 bluetooth
Bluetooth protocol ：Bluetooth 5、Bluetooth mesh
Bluetooth frequency ：125 Kbps、500 Kbps、1 Mbps、2 Mbps
5、 Interface pins
Numbers I/O x13
LED PWM controller 6 Channels
SPI x1
UART x2
I2C x1
I2S x1
Infrared transceiver ： Send the channel x2、 Receiving channel x2,( Any pin )
2 × 12 position SAR model / Data converter , 6 Channels
DMA controller ,3 Receive channels and 3 Send channel

Function indication
Type-C：5V
10/LED： On board LED Pin
ESP32-C3 module ： Lexin company launched the latest ESP32-C3 module
RST： Reset pin , Short contact point triggers reset
TP4057：TP4057 Lithium battery charging management chip
Charge： Charging indicator light
Extinguish ： Not connected to the power supply or full
Changliang ： Charging
flashing ： The battery is not connected
18Pin-FPC : GDI Display interface

Pin Overview
GPIO： Conventional pin
Analog port ： Analog input pins
JTAG： Debug interface
ADC： A / D conversion
VIN：5V Power input
BAT： Battery access

ESP32­C3­MINI­1 Functional block diagram

ESP32­C3­MINI­1 Schematic diagram

Modules and peripheral devices （ Such as power supply 、 The antenna 、 Reset button 、JTAG Interface 、UART Interfaces, etc. ） Application circuit diagram of the connection

appendix ： Related documents and resources
The related documents
• 《ESP32-C3 Technical reference manual 》 – Provide ESP32-C3 Detailed instructions for the memory and peripherals of the chip .
• 《ESP32-C3 Technical specifications 》 – Provide ESP32-C3 Hardware specifications of the chip .
• certificate
http://espressif.com/zh-hans/support/documents/certificates
• Document updates and subscription notifications
http://espressif.com/zh-hans/support/download/documents
Developer community
• 《ESP32-C3 ESP-IDF Programming Guide 》 – ESP-IDF The documentation center of the development framework .
• ESP-IDF And GitHub Other development frameworks on
http://github.com/espressif
• ESP32 Forum – Engineer to engineer (E2E) Our community , You can ask questions here 、 solve the problem 、 Share knowledge 、 Explore ideas .
http://esp32.com/
• The ESP Journal – Share the best practices of Lexin engineers 、 Technical articles and work essays .
http://medium.com/the-esp-journal
• SDK And demonstrate 、App、 Tools 、AT Other download resources
http://espressif.com/zh-hans/support/download/sdks-demos
Lexin products
• ESP32-C3 Series of chips – ESP32-C3 Full range of chips .
http://espressif.com/zh-hans/products/socs?id=ESP32-C3
• ESP32-C3 Series modules – ESP32-C3 Full range of modules .
http://espressif.com/zh-hans/products/modules?id=ESP32-C3
• ESP32-C3 Series development board – ESP32-C3 A full range of development boards .
http://espressif.com/zh-hans/products/devkits?id=ESP32-C3
• ESP Product Selector（ Lexin product selection tool ）– By filtering performance parameters 、 Compare products and quickly locate the products you need .
http://products.espressif.com/#/product-selector?language=zh

Download and install Arduino IDE（ Those already installed can be skipped ）
https://www.arduino.cc/en/software

add to ESP32C3 Development board
（1） open Arduino IDE, Click on the top left “ file >> Preferences ”, stay “ Add development board manager website ” Fill in... In the column ：
https://raw.githubusercontent.co … sp32_dev_index.json

Open the development board Manager , Search for “ESP32”, Choose the latest version here “2.0.3” Installation

Choose development board , Here's the choice “ESP32C3 Dev Module”

Power on for the first time Beetle ESP32-C3 Development board , The computer speaker keeps ringing ,“ drop … drop …”, The computer device manager is constantly refreshed …

https://img.mydigit.cn/forum/202207/06/151358l0zsxuxyqyi0kmj9.gif

Open the serial port , Keep outputting this …

Later, I posted for help , Just know the first burning program , Need to pull down D9（ Pick up GND）

This special requirement , Standard text description

【 Flower carving experience 】15 Try to build Beetle ESP32 C3 And Arduino development environment

The test program ： flashing LED The lamp , Serial output “Beetle ESP32 C3 Development board ”

/* 【 Flower carving experience 】15  Try to build Beetle ESP32 C3 And Arduino development environment   The test program ： flashing LED The lamp , Serial output “Beetle ESP32 C3 Development board ” */

int LED = 10;

void setup() {
    
  Serial.begin(115200);
  pinMode(LED, OUTPUT);
}

void loop() {
    
  Serial.println("Hello world!");
  Serial.println("Beetle ESP32 C3 Development board ");
  Serial.println("");

  digitalWrite(LED, HIGH);
  delay(1000);
  digitalWrite(LED, LOW);
  delay(1000);
}

Prompt for successful upload

After downloading successfully , Cut off the power D9 The pull-down DuPont line , Then power on to check the serial port return

Development board related selection and configuration

Experimental scene