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hese displays are small, only about 1" diameter, but very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its crispness!
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ESP32 is already integrated with antenna and RF balun, power amplifier, low noise amplifiers, filters, and the power management module. The entire solution is the least amount of PCB area. this board is 2.4 GHz dual mode WiFi and bluetooth chips by tsmc 40nm low power technology, power and optimized RF characteristics, which is safe, reliable, and scalable to a wide range of applications.
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Designed with the open frame type and mount board, high power. Easy to install for the electric door lock or other automatic door lock systems with the mounting board. silver tone Total Size : 6.6 x 4 x 2.7cm/2.6'' x 1.5'' x 1''(L*W*H);Cable Length : 24cm/9.4'';Mounting Hole Size : 6.8 x 3mm/0.26" x 0.12"(L*W)
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This is a 12V 1-Channel Relay interface board which can be controlled directly by a wide range of micro controllers such as Arduino, AVR, PIC, ARM, 8051 and so on. It can control both AC and DC appliances such as Solenoids, Motors, lights, fans, etc High quality screw terminals (Terminal Block) provided (C, NC , NO) for quick and easy connection LED Status indicators to indicate the relay ON/OFF status.
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'-24V 1-Channel Relay interface board, and each one needs 50-60mA Driver Current. -Equipped with high-current relay, AC250V 10A ; DC30V 10A. -Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). -Indication LED’s for Relay output status.
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This constant Voltage current boost module has high efficiency and little heat, low ripple and Stable performance With digital display, can show input Voltage), output Voltage) and output current) Output with USB interface and identification resistor, a single Lithium battery can be boosted to 5V to charge your phone Has over current protection and short circuit protection(input 15A fuse), safe to use Application: DIY a stabilized power supply, charge your electronic devices, stabilize Voltage for solar panel and etc
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P/N: Door lock solenoid NC-0837L-12V Materials: Copper lines, Matal, Cable Related Voltage: 12V/ DC Stroke VS Force 50grams @ 10mm Power 8 wattages Mounting hole: 6.8*3mm/0.26"*0.12"(L*W) Insulation Resistance: 100M Ohms, 500V DC Dielectric Voltage 700V DC per seconds Life cycle 1,000,000 cycle min Color Silver