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Ai Thinker ESP-01M WiFi ModuleFeatures-The smallest 802.11b/g/n Wi-Fi SoC moduleUses low power 32bit CPU and compatible with an application processorMain frequency up to 160MHzBuilt-in 10Bit high precision ADCSupport UART/GPIO/PWM/ADC interface..

Ai Thinker ESP-01S ESP8266 WiFi ModuleFeatures-1MB (8Mbit) Flash size.Very competitive priceAP, STA, AP+STA modes available.Very simple AT commands, easy to use.Internal LWIP interface.Four pins interface, VCC-3V3, GND, TXD, and RXD. Two extra GPIOs can use.AT commands firmware. New I..

Raspberry Pi 4 Black Compact ABS CaseFeatures:Only 3-piece ABS case with access to all Ports on pi 4Compatible for All variants of the Raspberry pi 4 Model BEasy to assemble and highly durable materialSlots to route GPIO and CSI ribbon cableCut-out for micro SC card at the bottom panellocking screw ..

SN04-N NPN NO 5mm Distance Detector Proximity Sensor Switch ModuleFeatures-Red LED checks the state of the proximity sensorHigh repeated positioning accuracyHigh switching frequencyWide voltage rangeAntivibration, dust, water, and oil preventionReverse power protection, short circuit protection, dir..