add board microdev_micro_c3

_board/microdev_micro_c3.md

@@ -1,17 +1,39 @@
 ---
 layout: download
 board_id: "microdev_micro_c3"
-title: "microC3 Download"
-name: "microC3"
-manufacturer: "microDev"
-board_url: ""
-board_image: "unknown.jpg"
-date_added: 2021-11-15
+title: "MicroDev microC3 Download"
+name: "MicroDev microC3"
+manufacturer: "MicroDev"
+board_url: "https://microdev.systems/"
+board_image: "microdev_micro_c3.jpg"
+date_added: 2021-10-06
 family: esp32c3
 bootloader_id: microdev_micro_c3
-downloads_display: false
 features:
-
+  - Bluetooth/BTLE
+  - Breadboard-Friendly
+  - STEMMA QT/QWIIC
+  - USB-C
+  - Wi-Fi
 ---
 
-Oops! Looks like we don't know anything about this board. This means it's likely very new.
+Introducing MicroDev microC3 dev-board based on Espressif's ESP32-C3 SoC, which is equipped with a RISC-V 32-bit single-core processor, operating frequency up to 160 MHz, supports secondary development without using other microcontrollers or processors. The ESP32-C3 is an highly integrated low power Wi-Fi and Bluetooth system-level chip (SoC), designed for various applications such as internet of things (IoT), mobile devices, wearable electronics, smart home, etc.
+
+### Features
+
+- Blue led and two NeoPixels.
+- Castellated pinout.
+- Onborad 700mA, 3.3V LDO.
+- Stemma-QT/Qwiic connector.
+- External Flash 4MB.
+
+### Specifications
+
+- Wi-Fi 802.11b/g/n, 1T1R mode data rate up to 150Mbps.
+- BLE 5.0 and rate support: 125Kbps, 500Kbps, 1Mbps, 2Mbps.
+- ESP32-C3 chip, 32-bit RISC-V single-core processor.
+- UART/PWM/GPIO/ADC/I2C/I2S interface, temperature sensor, pulse counter.
+- Multiple sleep modes, deep sleep electric current is less than 5uA.
+- STA/AP/STA+AP mode and mix mode.
+- USB port local upgrade and remote firmware upgrade (FOTA).
+- Secondary development, integrated Linux development environment.