Specifications

Brand Name: RobotDyn
Origin: Mainland China
High-concerned chemical: None
Model Number: AST-B
WiFi: 2.4 GHz
Bluetooth: BLE 5.0
MCU: ESP32

Product Description

All home functions are integrated into one automation system – ASTRA!

Features an impressive array of functions for individual solutions. And cost-effective, space-saving implementation, as well as comprehensive WiFi and expansion options, pay off when automating a home.

Opens up a wide range of control options for building functions, making it the perfect choice for fast, easy, and space-saving implementation of individual home automation projects. Provides the right solution for the convenient control of your heating, air-conditioning, lighting, irrigation, access control, garage door, presence detection, and for saunas and pools.

Especially handy is the controller's ability to connect to a smart home server as well as convenient control via smartphone, tablet, and PC through WiFi.

Garage

Garage Door: opening & closing. Automatization, RF KeyFob switch, and voice control.
CO2 gas sensor, fire sensors. Alarm. Notification. Ventilation.

Laundry & boiler room

Power control and energy efficiency and monitoring. Timetable ON/OFF.
Smart water heater, temperature control, and temperature limitation.
Leak detection. Alarm. Notification. Automatization.
Tap water valves, and water pump control.
Propane/butane gas detection. Alarm. Notification. Ventilation.

Security

Smart locks.
Camera and intercome.
RFID and code access.
Motion control.

Living room

Light control. Dimming. Automatization voice control.
Light switch operation, script, and automatization.
Shutters and Blinds. Sunlight protection. Timetable, automatization, voice control.
Smart plugs and appliances.
Termostate, heating & cooling. Air temperature. Timetable, automatization, voice control, ventilation.

Garden & waterpool

Garden lights. Timetable, automatization, motion control.
Motion sensor. Security.
Garden irrigation. Soil sensor. Water pump and valves control.
Waterpool. Water level control. Water pump and valve control. Water temperature control. Water quality control.

Highlights of the new ASTRA Smart Home controller

All units come with a WiFi and Bluetooth interface;
Basic units with Outputs: Relays 16A, Solid-State relays 16A, Mosfets 30A;
Versions for Inputs: isolated AC, isolated DC (dry contact), direct GPIO (3.3V);
Several versions for different supply power DC 7~36V, AC 90~240V;
Integrated web server with web interface and MQTT protocol;
Extended temperature range -20 to 55°C, without condensation.

Powerful with ESP32, 2.4 GHz Wi-Fi and Bluetooth LE 5.0, ASTRA can perform as a complete standalone system or as a slave device to a main server, reducing communication stack overhead on the main application processor. ESP32 can interface with other systems to provide Wi-Fi and Bluetooth functionality through its UART, I2C, SPI, SDIO interfaces.

TASMOTA - OPEN SOURCE FIRMWARE

Total local control of equipment and simple interface. TAMSOTA device firmware preinstalled and configured to ASTRA controller. Easy to configure for any customs projects. Easy to update and upgrade. Multilanguage interface.
Control using MQTT, Web UI, HTTP or serial.
Automate using timers, rules or scripts.
Integration with home automation solutions.
Incredibly expandable and flexible.

TASMOTA – Open source firmware for ASTRA

Easily integrates with many home automation solutions reporting status and sensor data and allowing complete control:

Tasmota, Alexa, AWS IoT, Domoticz, Home Assistant, Homebridge, HomeSeer, IP Symcon, KNX, NodeRed, nymea, OctoPrint, openHAB, Otto, IOBroker, Mozilla WebThings Adapter, SmartThings

Total local control with quick setup and updates.

Technical Specifications.

Basic modules	R4A4AL	R4D4DL	R4G4DL	T4A4AL	M4D4DL
	4 Relays, 4 AC In, PWR AC, LED	4 Relays, 4 DC In, PWR DC, LED	4 Relays, 8 GPIO, PWR DC, LED	4 SSR, 4 AC In, PWR AC, LED	4 MOSFET, 4 DC In, PWR DC, LED
Supply voltage
Rated value (AC)	90~240V (VAC 50/110Hz)			90~240V (VAC 50/110Hz)
Rated value (DC)		7~36V (VDC)	7~36V (VDC)		7~36V (VDC)
Digital outputs	4 Relays 16A, external fusing necessary	4 Relays 16A, external fusing necessary	4 Relays 16A, external fusing necessary. 8 Input/Output (GPIO) 3.3V logic level	TRIAC (SSR) 16A, external fusing necessary	Transistor MOSFET 15A, external fusing necessary
Relays switching capacity of contacts	VAC 240V, VDC 30V	VAC 240V, VDC 30V	VAC 240V, VDC 30V
with inductive load, max. (normal use=70%max.)	10 A	10 A	10 A
with resistive load, max. (normal use=70%max.)	16 A	16 A	16 A
Digital inputs	4 AC Isolated	4 DC Isolated, dry contact	8 Input/Output (GPIO) 3.3V logic level	4 AC Isolated	4 DC Isolated, dry contact
Analog Inputs	no	no	no	no	no
Indicate
Output	4 LED (blue)	4 LED (blue)	4 LED (blue)	4 LED (blue)	4 LED (blue)
Input	4 LED (green)	4 LED (green)	–	4 LED (green)	4 LED (green)
WiFi status	LED (blue)	LED (blue)	LED (blue)	LED (blue)	LED (blue)
Power IN	LED (red)	LED (red)	LED (red)	LED (red)	LED (red)
Sound	Buzzer	Buzzer	Buzzer	Buzzer	Buzzer
Mounting	DIN 35mm	DIN 35mm	DIN 35mm	DIN 35mm	DIN 35mm

Hardware and firmware.

Basic modules	R4A4AL	R4D4DL	R4G4DL	T4A4AL	M4D4DL
	4 Relays, 4 AC In, PWR AC, LED	4 Relays, 4 DC In, PWR DC, LED	4 Relays, 8 GPIO, PWR DC, LED	4 SSR, 4 AC In, PWR AC, LED	4 MOSFET, 4 DC In, PWR DC, LED
Firmware	TASMOTA (version link), configuration (link) (TASMOTA weblink)
Webserver	integrated web server with web interface
MQTT	MQTTv2
Interface	Serial UART, SPI, I2C (3.3V logic level)
WiFi	802.11 b/g/n , 802.11n (2.4Ghz), up to 150Mbps
Bluetooth	Bluetooth V4.2 BR/EDR and BLE specification
MCU	Microcontroller Espressif ESP32-D0WDQ6, core Xtensa dual core 32-bit LX6 microprocessor, up to 600MIPS, operation voltage 3.3V
Flash memory	Capacity 32Mbit (4Mbyte), NOR FLASH, SPI, operation voltage 3.3V

Packing information.

Basic modules	R4A4AL	R4D4DL	R4G4DL	T4A4AL	M4D4DL
	4 Relays, 4 AC In, PWR AC, LED	4 Relays, 4 DC In, PWR DC, LED	4 Relays, 8 GPIO, PWR DC, LED	4 SSR, 4 AC In, PWR AC, LED	4 MOSFET, 4 DC In, PWR DC, LED
Dimensions
Width	90mm	90mm	90mm	90mm	90mm
Height	72mm	72mm	72mm	72mm	72mm
Depth	65mm	65mm	65mm	65mm	65mm
Pakage dimensions	80mm100mm90mm
Weight
Netto (w/o addtiional modules)	0.24kg/0.29kg with external antenna	0.24kg/0.29kg with external antenna	0.24kg/0.29kg with external antenna
Brutto	0.29kg/0.32kg with external antenna	0.29kg/0.32kg with external antenna	0.29kg/0.32kg with external antenna

Ambient information.

Basic modules	R4A4AL	R4D4DL	R4G4DL	T4A4AL	M4D4DL
	4 Relays, 4 AC In, PWR AC, LED	4 Relays, 4 DC In, PWR DC, LED	4 Relays, 8 GPIO, PWR DC, LED	4 SSR, 4 AC In, PWR AC, LED	4 MOSFET, 4 DC In, PWR DC, LED
Degree of protection	IP20	IP20	IP20	IP20	IP20
Ambient conditions
Ambient temperature during operation
min.	-20 °C; No condensation	-20 °C; No condensation	-20 °C; No condensation	-20 °C; No condensation	-20 °C; No condensation
max.	55 °C	55 °C	55 °C	55 °C	55 °C
Ambient temperature during storage/transportation
min.	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
max.	70 °C	70 °C	70 °C	70 °C	70 °C

Firmware configuration.

* Firmware preconfigured on manufactury. Link for download latest configuration [link]. This is details information for manual configuration or for 3-d part firmware. MCU ESP32.

Basic modules	R4A4AL	R4D4DL	R4G4DL	T4A4AL	M4D4DL
	4 Relays, 4 AC In, PWR AC, LED	4 Relays, 4 DC In, PWR DC, LED	4 Relays, 8 GPIO, PWR DC, LED	4 SSR, 4 AC In, PWR AC, LED	4 MOSFET, 4 DC In, PWR DC, LED
GPIO34	Input-1	Input-1	GPIO34	Input-1	Input-1
GPIO35	Input-2	Input-2	GPIO35	Input-2	Input-2
GPIO36	Input-3	Input-3	GPIO36	Input-3	Input-3
GPIO39	Input-4	Input-4	GPIO39	Input-4	Input-4
GPIO25	Relay-1	Relay-1	Relay-1	Relay-1	Relay-1
GPIO26	Relay-2	Relay-2	Relay-2	Relay-2	Relay-2
GPIO33	Relay-3	Relay-3	Relay-3	Relay-3	Relay-3
GPIO32	Relay-4	Relay-4	Relay-4	Relay-4	Relay-4
GPIO4	LED WiFi	LED WiFi	LED WiFi	LED WiFi	LED WiFi
GPIO12	Sound Buzzer	Sound Buzzer	Sound Buzzer	Sound Buzzer	Sound Buzzer
GPIO27	RF433/315 socket	RF433/315 socket	GPIO27 / RF433	RF433/315 socket	RF433/315 socket
GPIO14	–	–	IO14	–	–
GPIO15	–	–	IO15	–	–
RXD0	Serial1 RXD	Serial1 RXD	Serial1 RXD	Serial1 RXD	Serial1 RXD
TXD0	Serial1 TXD	Serial1 TXD	Serial1 TXD	Serial1 TXD	Serial1 TXD
GPIO16	Serial2 RXD	Serial2 RXD	Serial2 RXD	Serial2 RXD	Serial2 RXD
GPIO17	Serial2 TXD	Serial2 TXD	Serial2 TXD	Serial2 TXD	Serial2 TXD
GPIO13	Serial2 CS	Serial2 CS	GPIO13/Serial2 CS	Serial2 CS	Serial2 CS
GPIO5	SPI CS0	SPI CS0	SPI CS0	SPI CS0	SPI CS0
GPIO18	SPI CLK	SPI CLK	SPI CLK	SPI CLK	SPI CLK
GPIO19	SPI MISO	SPI MISO	SPI MISO	SPI MISO	SPI MISO
GPIO23	SPI MOSI	SPI MOSI	SPI MOSI	SPI MOSI	SPI MOSI
GPIO21	I2C SDA	I2C SDA	I2C SDA	I2C SDA	I2C SDA
GPIO22	I2C SCL	I2C SCL	I2C SCL	I2C SCL	I2C SCL
GPIO2	I2C INT	I2C INT	I2C INT	I2C INT	I2C INT
GPIO0	PROG	PROG	PROG	PROG	PROG
EN	RESET	RESET	RESET	RESET	RESET

Interfaces Socket.

Basic modules	R4A4AL	R4D4DL	R4G4DL	T4A4AL	M4D4DL
	4 Relays, 4 AC In, PWR AC, LED	4 Relays, 4 DC In, PWR DC, LED	4 Relays, 8 GPIO, PWR DC, LED	4 SSR, 4 AC In, PWR AC, LED	4 MOSFET, 4 DC In, PWR DC, LED
I2C
1	–	–	–	–	–
2	GND	GND	GND	GND	GND
3	I2C SDA	I2C SDA	I2C SDA	I2C SDA	I2C SDA
4	I2C SCL	I2C SCL	I2C SCL	I2C SCL	I2C SCL
5	I2C INT	I2C INT	I2C INT	I2C INT	I2C INT
6	–	–	–	–	–
RS/SPI
RS mode
1	–	–	–	–	–
2	GND	GND	GND	GND	GND
3	Serial2 RXD	Serial2 RXD	Serial2 RXD	Serial2 RXD	Serial2 RXD
4	Serial2 TXD	Serial2 TXD	Serial2 TXD	Serial2 TXD	Serial2 TXD
5	Serial2 CS	Serial2 CS	Serial2 CS	Serial2 CS	Serial2 CS
6	–	–	–	–	–
SPI mode
1	3.3V	3.3V	3.3V	3.3V	3.3V
2	GND	GND	GND	GND	GND
3	SPI MOSI	SPI MOSI	SPI MOSI	SPI MOSI	SPI MOSI
4	SPI MISO	SPI MISO	SPI MISO	SPI MISO	SPI MISO
5	SPI CLK	SPI CLK	SPI CLK	SPI CLK	SPI CLK
6	SPI CS0	SPI CS0	SPI CS0	SPI CS0	SPI CS0

Pros & Cons

Pros

Supports both 2.4 GHz WiFi and BLE 5.0 Bluetooth for wide smart home device compatibility
Pre-loaded with TASMOTA firmware for flexible, customizable home automation setups
Compatible with Home Assistant, a popular open-source smart home platform
Compact, space-saving design for cost-effective home automation integration

Cons

Only supports 2.4 GHz WiFi networks, so it cannot connect to 5 GHz WiFi bands
No included setup instructions or mounting hardware, requiring buyers to source additional parts for installation
The product description is cut off, limiting available details on supported specific devices
No built-in user interface, so all configuration must be done via a smart home platform or command line

Common Questions

Which smart home platforms is this controller compatible with?

This controller is compatible with Home Assistant, and uses the MQTT protocol for seamless connectivity between devices.

What wireless connectivity options does this smart controller have?

It supports 2.4 GHz WiFi and BLE 5.0 Bluetooth for broad compatibility with smart home devices.

What firmware does this smart controller run?

This controller comes pre-installed with TASMOTA firmware, allowing for flexible custom automation configurations.

What main control chip does this smart home controller use?

This controller uses an ESP32 MCU for reliable performance and expanded connectivity options.

What can this smart home controller be used for?

It integrates all home functions into a single automation system, supporting custom individual solutions for home automation.

Basic Smart Home controller. WiFi, Bluetooth. Input/Output. TASMOTA firmware. MQTT protocol. Compatible Home Assistant. ESP32