doc

README.md

@@ -1,4 +1,28 @@
 # ESP32-C3_Zen Development Board
 _Bare metal ESP32-C3 DevBoard_
 
+### Features:
+- transperent design;
+- compact size;
+- connects to the power rails on a breadboard;
+- can be powered by USB-C port or external power supply;
+- 3.3V and 5V power supplies;
+- GPIOs arranged into 4 groups for easier identification;
+- on-board ESP32-C3 Module with USB-C port allows to flash a firmware as you work with breadboard;
+- debugging points;
+- power pads makes it easy to connect alligators supplying voltage to the board;
+- on-board system LEDs: power, and module reset mode;
+- on-board push switch for Reset and Flash modes;
+- on-board push switch and LED for your needs;
+
+### ESP32-C3 Module:
+- single-core
+- 32-bit RISC-V MCU @ 160 MHz
+- 400 KB of internal RAM
+- RSA-3072-based secure boot and the AES-128/256-XTS flash encryption
+- low power-mode support
+- Rich connectivity for IoT applications: Wi-Fi and Bluetooth 5 (LE) with long-range support
+- Bluetooth LE SIG Mesh and Wi-FI Mesh support
+- 22 GPIOs
+
 # Schematic