ESP8266 Serial Port WiFi ESP-12E Motor Drive Expansion Board L293D

ESP-12E motor drive expansion board
The first motor drive expansion board developed based on ESP-12E.

Features:
l ESP12 DEV KIT development board expansion module;
l Lead out all function pins of ESP12 DEV KIT: SPI, UART, GPIO, AI and 3.3V power interface;
l Extend the two-way motor drive, which can directly drive the two-way motor;
l Onboard power switch;
lL293D
l Motor power supply range: 4.5V~36V;
l Control power supply range: 4.5V~9V;
l Motor power supply and control power supply are separated; in the experiment, the short-circuit block can be combined to short-circuit VIN and VM, and power the motor and control board at the same time.

Product technical specifications:
power input:
~ Motor power supply (VM): 4.5V～36V, can be powered separately;
~ Control power supply (VIN): 4.5V～9V (10VMAX), can be powered separately;
~ The module provides a short circuit (short-circuit VM and VIN), you can easily use a power supply (must be 4.5V ~ 9V) at the same time to complete the drive and control of the motor;
Logical working current Iss: ≤60mA (Vi=L), ≤22mA (Vi=H);
Working current Io of the driving part: ≤1.2A;
Maximum power dissipation: 4W (T=90℃)
Control signal input level: high level: 2.3V≤VIH≤VIN; low level: -0.3V≤VIL≤1.5V
Working temperature: -25℃～＋125℃
Drive form: dual high-power H-bridge drive
ESP12E Dev Kit control ports: D1, D3 (A motor); D2, D4 (B motor)
Module weight: about 20g

Notice
l When inserting the ESP-12E module, please note that the antenna direction is consistent with the direction of the expansion board;
lUsing the short-circuit module, you can supply power to the control board and the motor at the same time.
Rich information.