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Seeedstudio ESP8285 Wi-Fi SoC ModuleFeatures-The smallest 802.11b/g/n Wi-Fi SoC moduleUses low power 32bit CPU and compatible with the application processorMain frequency up to 160MHzBuilt-in 10Bit high precision ADCSupport UART/GPIO/PWM/ADC interfaceIntegrate Wi-Fi MAC/BB/RF/PA/LNA..

GY-21 HTU21 Sensor ModuleFeatures-2.1V to 3.6V Supply VoltageLow power consumption – 0.15uA typicalI2C interfaceResolution: 0.04%RH, 0.02°CAccuracy: ±2%RH, ±3°C..

CJMCU-219 INA219 I2C Interface No Drift Bi-directional Current / Power Supply Monitoring ModuleFeatures-0.1 ohm 1% 2W current sense resistorUp to +26V target voltageUp to ±3.2A current measurement, with ±0.8mA resolution0.9″ x 0.8″ PCBPCB (no header or terminal block): 1.9gSenses Bus Voltages from 0..

5A 12V Overcurrent Protection AC Current Detection Sensor ModuleFeatures-Current detection resolution can change the parameter of resistance parameters;Output over-current switching signal output;The over-current signal setting critical point is adjustable...

ESP8266 Serial Port To Wi-Fi Module FL-M1SFeatures-SDIO 2.0, SPI, UARTIntegrated RF switch, balun, 24dBm PA, DCXO, and PMUIt equips integrated RISC processor, on-chip memory and external memory interfacesFeaturing integrated MAC/baseband processorsI2S interface for high fidelity audio applications..

Ai Thinker LoRa Series Ra-02 Spread Spectrum Wireless ModuleFeatures-LoRa  Spread Spectrum modulation technologyConstant RF power output at + 20dBm-100mW voltage changeHigh sensitivity: down to -148dBmHalf-duplex SPI communicationProgrammable bit rates up to 300kbpsSupports FSK, GFSK, MSK, GMSK..

GYML8511 Analog Output Ultra-Violet Light Sensor ModuleFeatures-Photodiode sensitive to UV-A and UV-BEmbedded operational amplifierAnalog voltage outputLow supply current (300uA type) and low standby current (0.1uA type)..

Ai Thinker LoRa-Ra-01 RF Transceiver ModuleFeatures-LoRaTM spread spectrum communication+18dBm – 10mW. Stable RF output power when the input voltage changedHalf-duplex SPI communicationProgrammable bit rate can reach to 300kbpsSupport FSK, GFSK, MSK, GMSK, LoRaTM and OOK Modulation Mode127dB RS..

Flame Sensor Relay ModuleFeatures-    It is a Flame Sensor Relay Module. The flame sensor can detect the flame or the wavelength at 760 nm to 1100 nm range of the light source, the test flame lighters distance of 80cm, the larger the flame, the greater the distance test. The dete..

ESP8266 NodeMCU CP2102 boardFeatures-11 b/g/n Wi-Fi Direct (P2P), soft-APIntegrated TCP/IP protocol stackUse CH340G to replace the CP2102.Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabledArduino-like hardware IO..