Product Description : ESP12 DEV KIT development board expansion module; lead ESP12 DEV KIT All-function pins: SPI, UART, GPIO, AI and 3.3V power connector; expand two-way motor-driven, two-way direct drive motor; onboard power switch; L293D Motor power range: 4.5V ~ 36V; Control power range: 4.5V ~ 9V; Motor power, control power separation; In the experiment, by short-circuiting block the merger, the VIN and VM short, while power supply to the motor and the control board. Motor Power (VM): 4.5V ~ 36V, can be a separate power supply; Control power (VIN): 4.5V ~ 9V (10VMAX), can be powered separately; Module provides short-circuit sub (short the VM and VIN), you can easily use one power (must 4.5V ~ 9V) simultaneously drive and control the motor; Logic Operating current Iss: ?60mA (Vi = L), ?22mA (Vi = H); Drive part of the work current Io: ?1.2A; Maximum power dissipation: 4W (T = 90 ) Control signal input level: High: 2.3V?VIH?VIN; Low: -0.3V?VIL?1.5V Working temperature: -25 ~ + 125 Drive Type: Dual high-power H-bridge driver ESP12E Dev Kit Control Port: D1, D3 (A motor); D2, D4 (B motor) Module Weight: about 20g Package Include : 5 X NodeMCU Motor Shield Board L293D
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