Merge pull request #991 from askpatrickw/add-beetle-esp32-c3

Add Beetle ESP3-C3

_board/beetle-esp32-c3.md

@@ -0,0 +1,70 @@
+---
+layout: download
+board_id: "beetle-esp32-c3"
+title: "DFRobot Beetle ESP32-C3 Download"
+name: "DFRobot Beetle ESP32-C3"
+manufacturer: "DFRobot"
+board_url: "https://wiki.dfrobot.com/SKU_DFR0868_Beetle_ESP32_C3"
+board_image: "beetle-esp32-c3.png"
+date_added: 2022-07-17
+downloads_display: true
+blinka: false
+family: esp32c3
+bootloader_id: lolin_c3_mini
+features:
+  - Battery Charging
+  - Bluetooth/BTLE
+  - Breadboard-Friendly
+  - Display
+  - USB-C
+  - Wi-Fi
+---
+
+Beetle ESP32-C3, mainly intended for IoT applications, is a controller based on
+ESP32-C3 RISC-V 32bit single-core processor.
+
+On a coin-size board of 25*20.5 mm, there are up to 13 IO ports broken out, so
+you don't have to worry about running out of IO ports when making projects.
+Meanwhile, li-ion battery charging management function is integrated on the
+board which allows to directly connect li-ion battery without extra modules,
+while ensuring the application size and safety.
+
+The equipped expansion board for Beetle ESP32-C3 brings out more power sources
+without increasing product volume, more convenient to solder. Besides, the
+onboard easy-to-connect GDI saves the trouble of wiring when using a screen.
+
+## Interface pins
+
+- Digital I/O x13
+- LED PWM controller with 6 channels
+- SPI x1
+- UART x2
+- I2C x1
+- I2S x1
+- Infrared receiver and transmitter: transmit channel x2, receive channel x2,
+(any pin)
+- 2 × 12-bit SAR A/D converters, 6 channels
+- DMA controller, 3 receive channels and 3 transmit channels
+- USB Type-C: 5V
+- PIN10/LED: Onboard LED pin
+- ESP32-C3 module: the latest ESP32-C3 module launched by Espressif
+- RST: reset pin, short contact point trigger reset
+- TP4057: TP4057 lithium battery charge management chip
+- Charge: charging indicator
+  - Off: not plugged in power supply or fully charged
+  - On: charging
+  - Blinking: battery not connected
+- 18Pin-FPC:GDI display interface
+
+## To Boot into Firmware Download Mode
+
+![Beetle ESP32 C3 Firmware Download](/assets/images/boards/original/beetle-esp32-c3-downloadmode.png)
+
+1. Pull PIN 9 Down
+1. Place a jumper across RST and hold for 3 seconds
+1. Release RST and PIN 9
+1. Flash as normal per [Espressif port instructions](https://github.com/adafruit/circuitpython/tree/main/ports/espressif#building-and-flashing)
+
+## Purchase
+Add any links to purchase the board
+* [DFRobot](https://www.dfrobot.com/product-2566.html)