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Smart Electronics 37 in one sensor kit, 37 sensor kits, 45 in one sensor kit

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Smart Electronics 37 in one sensor kit, 37 sensor kits, 45 in one sensor kit

37 in one sensor kit, 37 sensor kits, 45 in one sensor kit
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Smart Electronics 37 in one sensor kit, 37 sensor kits, 45 in one sensor kit
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1.37 in one sensor kit
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Smart Electronics MH-Z19B CO2 detection sensor module Infrared carbon dioxide sensor

MH-Z19B CO2 detection sensor module Infrared carbon dioxide sensor MH-Z19B 0-5000PPM Mh-z19c 400-5000ppm C is an upgrade of B Carbon dioxide gold shell (non mh-z19) 400-5000ppm Carbon dioxide white shell (non mh-z19) 400-5000ppm

Smart Electronics 1.2V 12V ZB2L3 18650 Li-ion Lithium Battery Capacity Resistance Lead-acid Meter Discharge Tester

1.2V 12V ZB2L3 18650 Li-ion Lithium Battery Capacity Resistance Lead-acid Meter Discharge Tester Maximum support 15V 3A discharged through the discharge voltage and current, itself does not discharge Maximum capacity statistics support 9999Ah (9999000mAh) Automatically identify and develop appropriate battery termination voltage can also be manually adjusted

Smart Electronics DIY HIFI M18 Stereo Wireless 4.2 MP3 Audio Receiver board Module Decoder Board MH-M18

DIY HIFI M18 Stereo Wireless 4.2 MP3 Audio Receiver board Module Decoder Board MH-M18 This product MH-M18 is a low-power Bluetooth design solution that supports the latest Bluetooth 4.2 transmission, supports Bluetooth automatic reconnection technology, and supports dual channel stereo lossless playback. After the module is connected to Bluetooth, it can quickly achieve Bluetooth wireless transmission, which is very convenient. In an open environment, the Bluetooth connection distance can reach up to 20 meters. Widely used in various Bluetooth audio reception, various audio DIY modifications, etc.

XL 6009 DC to DC Step Up Converter xl6009 step-up power module dc motor

This DC-DC Module is based on IC XL6009E1 which is a high-performance step-up switching current (BOOST) module. The module uses the second generation of high-frequency switching technology XL6009E1 core chip that offers superior performance over the first generation technology LM2577. XL6009 replaces LM2577 module as LM2577 is about to be phased out.

TDA7293/TDA7294 Mono Channel Amplifier Module Circuit PCB Bare Board 4XFB

Model: TDA7293/TDA7294 Power supply: double AC 15V to 36V (AC needs rectification and filtering) or DC positive and negative 18V to 50V.Recommended double 35V (Note that it is not a dual 35V transformer, it is positive and negative 35V DC. And It is recommended to double 26V/200W toroidal transformer, after rectification voltage is about DC double 35V).

Smart Electronics New Original SIMCOM SIM7000A SIM7000G SIM7000E, NB/CAT-M/GSM Module

New Original SIMCOM SIM7000A SIM7000G SIM7000E, NB/CAT-M/GSM Module

TTP223 touch button module self-locking inching capacitor switch single circuit reconstruction

TTP223 touch button module self-locking inching capacitor switch single circuit reconstruction (D2A4) Size:15mmX11MM Supply:2.5v-5.5v

Smart Electronics HC-SR505 Mini sensor di movimento a infrarossi PIR sensor preciso a infrarossi SR505

HC-SR505 Mini sensor di movimento a infrarossi PIR sensor preciso a infrarossi SR505

Smart Electronics 16 channel relay module 5v power supply control board module 5V12V with optocoupler protection LM2596

16 channel relay module 5v power supply control board module 5V12V with optocoupler protection LM2596

High-Precision Low-ower INMP441 Omnidirectional Microphone Module I2S Interface Supports ESP32

Smart Electronics 4S 30A High Current Li-ion Lithium Battery 18650 Charger Protection Board 14.4V 14.8V 16.8V BMS

4S 30A High Current Li-ion Lithium Battery 18650 Charger Protection Board 14.4V 14.8V 16.8V BMS 1. Module name: 4 series lithium battery protection board 2. Modular nature: polymer lithium battery protection board 3. Overcharge detection voltage: 4.25 ± 0.025V 4. Overcharge release voltage: 4.15 ± 0.05V 5. Overdischarge detection voltage: 2.50 ± 0.08V 6. Over-discharge termination voltage: 3 ± 0.1V 7. Overcurrent: 20-30A

MAX485 Module RS-485 TTL to RS485 MAX485CSA Converter Module

1 on-board MAX485 chip , is a tool for RS-485 communications , low-power , Slew-Rate Transceiver 2 onboard then 5.08 (mm) pitch 2P terminal for easy wiring RS-485 communication 3 the chip has drawn all of the pins can be controlled by the microcontroller operation 4 Working voltage : 5V 5 board size : 44 (mm) x14 (mm)

Smart Electronics Mini Ble Audio Receiver Amplifier Board Module With Stereo Speakers

Mini Ble Audio Receiver Amplifier Board Module With Stereo Speakers

Smart Electronics 5A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter module XL4015

5A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter module XL4015 Three in one: (1) Use as an ordinary step-down module with over-current protection capability; (2) Used as a charger for various voltage values of lithium batteries, batteries, nickel-cadmium nickel-metal hydride batteries (battery pack), used in solar panels, wind turbines and other occasions; (3) Use as a high-power LED constant current drive module

Smart Electronics HC-08 BLE4.0 master-slave integrated Bluetooth module CC2540 wireless serial communication data transmission module

HC-08 BLE4.0 master-slave integrated Bluetooth module CC2540 wireless serial communication data transmission module Product model: HC-08 Working frequency band: 2.4G Communication interface: UART3.3VTL level Working voltage: 3.0-3.6V RSSI support: not supported Communication level: 3.3V Transmission power: 4dBm Reference distance: 80 meters Air speed: 2Mbps Antenna interface: built-in PCB antenna Communication current: 0.4uA Receiving sensitivity: 85dbm@2Mbps Working humidity: 10%~90% Storage temperature: 40 ℃ -+80 ℃ Working temperature: -25 ℃ -75 ℃

Smart Electronics DC DC Boost Converter Constant Module Current Mobile Power Supply 250W 10A LED Driver Module Non-isolated Step Up Module

DC DC Boost Converter Constant Module Current Mobile Power Supply 250W 10A LED Driver Module Non-isolated Step Up Module Applications: 1, DIY a power supply, 12V can input and output can 12-50V adjustable. 2, the power supply for your electronic device, according to your system can set the output voltage value. 3, as the car power supply for your laptop, PDA or a variety of digital products supply. 4, DIY a mobile notebook power supply: 12V coupled with high-capacity lithium battery pack, so you can go where light where books. 5, solar panel regulator.

Smart Electronics DC5V-12V Charging module for lithium battery 18650 UPS voltage converter uninterruptible power supply module

DC5V-12V Charging module for lithium battery 18650 UPS voltage converter uninterruptible power supply module Product parameters: Starting voltage: 1.2V Working voltage: 2V-6.5V Output voltage: 5V/9V/12V optional Working voltage is 2V-6.5V Input current: 2A Output power: ≤8W (no matter how high it is, it is easy to overheat) No-load current 2-3.5mA (input 1.5V output 12V) Board size: 33*16*6.5mm Output pad: USB/DC optional

Smart Electronics BLE 4.0 serial port patch type cc2540 cc2541 data transparent transmission iBeacon module

BLE 4.0 serial port patch type cc2540 cc2541 data transparent transmission iBeacon module ☆Ultra-low standby power consumption 90uA~400uA ☆ Ultra-long connection distance 100 feet/60 meters ☆Super fast response speed 0.4 seconds ☆ Android, Apple, PC, MAC are all universal. ☆No byte limit for sending and receiving, up to 3K Bytes/sec ☆ No need to do MFI ☆ IOS system is perfectly supported. ☆Android 4.3 system is perfectly supported.

Smart Electronics TTGO T-Display ESP32 WiFi And Ble Module Development Board

TTGO T-Display ESP32 WiFi And Ble Module Development Board Chipset： ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor FLASH： QSPI flash 4MB SRAM： 520 kB SRAM Button： Reset USB to TTL： CP2104 Modular interface： UART,SPI,SDIO,I2C,LED PWM,TV PWM,I2S,IRGPIO,ADC,capacitor touch sensor,DACLNA pre-amplifier

Smart Electronics LCD1602 yellow-green screen 1602A lcd display blue

LCD1602 yellow-green screen 1602A lcd display blue 69.5*21.8*17.8 weighs about 30 grams
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