Documentation

Device Description

General information.

This controller is built on the ATmega328 platform. The controller is made in the form of several functionally completed blocks. Minimally necessary components for assembling and starting the controller:

 1. Microcontroller ATmega328 (on Arduino Nano 3.0 platform):

Specifications:

  • Microcontroller ATmega328
  • Operating voltage (logic level) 5 V
  • Input voltage (recommended) 7-12 V
  • Input voltage (limiting) 6-20 V
  • Digital Inputs / Outputs 14 (6 of which can be used as PWM outputs)
  • Analog inputs 8
  • DC current through input / output 40 mA
  • Flash memory 32 KB with 2 KB used for the bootloader
  • RAM 2 KB
  • EEPROM 1 KB
  • Clock speed 16 MHz
  • Dimensions 1.85 cm x 4.2 cm

 

2. Display: LCD 2004 on I2C (with port extender PCF8574)
 

Specifications:

  • Size: 20 × 4, 20 characters per line, 4 lines

 

 

3. Блока часов реального времени (DS3231)

Specifications:

  • Interface: I2C, maximum transmission speed 400 kHz (at operating voltage 5V);
  • Hours: minutes: seconds AM / PM;
  • Calendar: Day Month, Date - Year;
  • Accounting for leap years;
  • Accurate calendar until 2100;
  • There is a 1 Hz output;
  • Operating voltage: 3,3 - 5V;

 

 4. Joystick module.

Specifications:

  • VCC: "+" power supply.
  • V: Output of the analog signal output along the Y axis
  • H: Output of the analog output signal along the X axis
  • KEY: Output of the output signal from the button
  • GND: "-" power supply

 

 

 

 5. Power unit or Solid state relay.

Specifications:

  • 8 channels of load up to 2 amps each.
  • Power supply: 5V DC (160mA)
  • Size: 130x 60x15mm

Depending on the type of device, both 4-channel and 8-channel units can be used.

 

 

 

 

6. Communication unit ESP8266 model ESP-07

Specifications:

  • The processor: one nuclear Tensilica L106 frequency up to 160 MHz.
  • Supported WI-FI standards: 802.11 b / g / n.
  • Supported encryption types: WEP, WPA, WPA2.
  • Supported modes of operation: Client (STA), Access Point (AP), Client + Access Point (STA + AP).
  • Power supply: 1.7..3.6 V.
  • Current consumption: up to 215 mA, depending on the operating mode.
  • The number of GPIO: 16 (actually up to 11). Available on modules: ESP-01 - 4, ESP-03 - 7 + 1, including UART.
  • There are other options for modules.
  • Interfaces: 1 ADC, I2C. UART, SPI, and PWM.
  • External Flash memory can be installed from 512 KB. Up to 4 mb.
  • RAM data of 80 kb.
  • RAM instructions 64 kb.

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