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DOIT DT-06: high-resolution pinout and specs

Renzo Mischianti
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The DT-06 is a TTL-WiFi module developed by Doctors of Intelligence & Technology Co. LTD. It is designed based on the ESP-M2 WiFi module and features transparent transmission capabilities.

DOIT DT-06 pinout

Link to the high resolution image

Here my tested device DT-06

Specs

Importantly, the TTL-WiFi is already built-in in the serial transparent transmission firmware programmed, which can realize the transparent transmit the data in real-time, together with low-power control, and status indictor. This board can replace the old wiring serial WiFi device to realize the data collection and control. It has the following features.

ESP-M2 Specs

Key Features:

  1. Compatibility: The DT-06 module is fully compatible with the original electrical and physical interfaces for serial transparent Bluetooth HT-06.
  2. Transparent Transmission: It comes with built-in industrial transparent transmission firmware (V3.0) that supports real-time data transmission between serial and WiFi. This makes it suitable for applications like data collection and control.
  3. WiFi Module: The module is equipped with a high-performance WiFi module (ESP-M2) with a compact size of 34mm x 17mm x 4mm.
  4. Voltage Compatibility: It operates at a working voltage of 4.5V to 6.0V, with TTL working voltage at 3.3V (compatible with 5.0V).
  5. Interfaces: The module provides pins for STATE, TXD, RXD, and EN.
  6. Low Power: It has an average current consumption of 80mA. During data transmission, it consumes 170mA, and in deep sleep mode, it draws as little as 20μA.
  7. AT Command Support: The module supports serial AT commands for configuration and control.
  8. Firmware Update: It supports re-programmable firmware updates over-the-air (OTA).
  9. Web Configuration: The module features a built-in HTTP web server, allowing users to configure parameters via a web page.
  10. Network Modes: It supports various network modes, including TCP Server, TCP Client, UDP Server, UDP Client, and UDP local broadcast.
  11. Built-in HTTP Server: You can configure parameters through a web page, making it user-friendly for setup.
  12. Temperature Range: It can operate in a wide temperature range from -40°C to 125°C.

Applications: The DT-06 module finds applications in various fields, including smart homes, wireless data connections, transparent data transmission, smart car control, wireless serial printers, LED light industrial control, and more.

The user manual provides detailed information on configuring and using the module, making it a valuable resource for developers and engineers working with TTL-WiFi communication.

Please note that the provided information is based on the user manual you shared, and there may have been updates or changes to the module since the manual’s publication in March 2017. It’s essential to refer to the latest documentation or contact the manufacturer for the most up-to-date information and support.

Pinout description

Pinout for the DT-06 TTL-WiFi module:

Pin 1: STATE (I/O – GPIO4)

Pin 2: RXD (I/O – GPIO3)

Pin 3: TXD (I/O – GPIO1)

Pin 4: GND (Power)

Pin 5: VCC (Power)

Pin 6: EN (I – Enable)

Please note that the pins are labeled according to their functions and their corresponding GPIO (General-Purpose Input/Output) numbers. You can connect these pins to other devices or microcontrollers as needed to establish communication and control with the DT-06 module.

Buttons and LED

  1. SW1 (Button 1):
    • Function: This button is used for firmware updates and configuration.
    • Connection: It is connected to GPIO0.
    • Usage: To download firmware updates, you would typically press SW1 first and then press SW2, followed by releasing both buttons. The exact procedure may vary based on the specific firmware update process.
  2. SW2 (Button 2):
    • Function: This button is also used for firmware updates and configuration.
    • Connection: It is connected to the RST (reset) pin.
    • Usage: Like SW1, SW2 is involved in firmware update processes. You would press SW2 after pressing SW1 as part of the firmware update procedure.
  3. LED: is connected to GPIO4 (General Purpose Input/Output Pin 4). The GPIO4 pin is used to control and indicate the status of the LED on the module.

Original firmware LED Indicators

The DT-06 module has several LED indicators, each with its own function:

  1. LED Indicator 1 (Always On):
    • Function: This LED is typically always on.
    • Indication: It indicates a successful connection to the wireless router when the module is in STA (Station) mode or STA+AP mode.
  2. LED Indicator 2 (Slow Blinking):
    • Function: This LED blinks slowly at regular intervals.
    • Indication:
      • In AP (Access Point) mode, it indicates that the module has unsuccessfully connected to the wireless router.
      • In STA mode, it indicates that the module is attempting to connect to a wireless router.
      • In AP+STA mode, it indicates that the module is trying to connect to the wireless router.
  3. LED Indicator 3 (Fast Blinking):
    • Function: This LED blinks rapidly.
    • Indication: When SW1 or the Flash button is pressed and the module receives data via the serial interface or over the network, this LED will blink rapidly.
  4. LED Indicator 4 (Off):
    • Function: This LED remains off.
    • Indication: This LED will be off if the WiFi module isn’t functioning due to abnormal power conditions or if it doesn’t have the transparent transmission firmware installed.

Please note that the specific meanings of LED indicators may vary slightly based on the firmware and configuration of the module.

Firmware

Last original firmware from DOIT (with all bug fixes)

Original DOIT firmware with all patch

ESP-LINK firmware with advanced features

esp-link-v3.0.14-g963ffbb.tgz

How To

  1. WiFi remote debugging on Arduino with DT-06
  2. Program Arduino UNO Remotely via WiFi with DT-06 ESP-Link Firmware

Datasheet

DOIT DT-06 documentation

ESP-M2 datasheet

Thanks


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