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3Pcs Two Channel IIC I2C Logic Level Converter Bi-Directional Module Feature: Power supply:5V-3V AVCC connect to 5V system power ASCL connect to 5V system SCL ASDA connect to 5V system SDA AGND connect to 5V system GND BVCC connect to 3V system power BSCL connect to 3V system SCL BSDA connect to 3V systems SDA BGND connect to 3V system GND Package included: 3 x Two Channel IIC I2C Logic Level Converter Bi-Directional Module

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3Pcs 8-Channel Logic Level Translator Converter Bi-Directional Module 3Pcs 8-Channel Logic Level Translator Converter Bi-Directional ModuleIntroduction:If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be.The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.This level converter also works with 2.8V and 1.8V devices.What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel.Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.The level converter is very easy to use.The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using.High voltage (5V for example) to the 'HV' pin, low voltage (3.3V for example) to 'LV', and ground from the system to the 'GND' pin.Feature:8-channel high-voltage and low-voltage logic bidirectional translationMini size, 4.1cm x 1.8cmComes with 2 rows of 6pin, unsolderedCompatible breadboard, can be directly inserted in the breadboardNote: (For example: High voltage: 5V, low voltage: 3.3V)HV connect 5V power supplyLV connect 3.3V power supplyGND connect negative, two power supply commonsLVx input and output is 3.3V TTL, HVx input and output is 5V TTL, LVx and TVx bidirectional transfersPackage includes:3 x Eight Channel Logic Level Translator Converter

3Pcs 8-Channel Logic Level Translator Converter Bi-Directional Module Introduction: If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side. The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the 'HV' pin, low voltage (3.3V for example) to 'LV', and ground from the system to the 'GND' pin. Feature: 8-channel high-voltage and low-voltage logic bidirectional translation Mini size, 4.1cm x 1.8cm Comes with 2 rows of 6pin, unsoldered Compatible breadboard, can be directly inserted in the breadboard Note: (For example: High voltage: 5V, low voltage: 3.3V) HV connect 5V power supply LV connect 3.3V power supply GND connect negative, two power supply commons LVx input and output is 3.3V TTL, HVx input and output is 5V TTL, LVx and TVx bidirectional transfers Package includes: 3 x Eight Channel Logic Level Translator Converter

3Pcs 3V To 5V 1A USB Charger DC-DC Converter Step Up Boost Module Features: Module uses the Taiwan production boost chip, high efficiency (up to 92%), plus built-in over-current protection chip, can be more good to protect the module and use the device after the class. Module with undervoltage protection, undervoltage protection into state below 2.5V, can be more better protect the battery, to avoid excessive discharge. Module can modify the fixed resistor adjusts the output voltage can be adjusted up to 12V output, but to ensure that the output power of less than 5W. This module uses TDK multilayer ceramic capacitors as main filter capacitor, the output ripple can be as low as 20mV (5V1A output case)! This module uses a standard USB interface, you can use all universal USB charging mobile phones, MP3, MP4 and other equipment, the perfect support for IPHONE and other mobile phone. Specification: Module properties: Non-isolated step-up module (BOOST) Input voltage: 2.5-6V Output voltage: 4-12 V(Adjustable, the default 5 v) Output current: 1000mA (Max) Efficiency: 92%(Max) (the higher the input voltage, the higher the efficiency) Switching frequency: 1MHz Output ripple: 20mV (MAX) Operating temperature: Industrial (-40°c to +85°c) Voltage regulation: ±2.5% Short circuit protection: None (please use the lithium battery with protection) Input: IN + postive, IN - negative Output: USB output Size: 3 x 1.3 x 0.8 cm Application: This module can be used for DIY mobile power output, enabling single or two ordinary lithium battery to 5V boost to the mobile phone or PSP device charging. DIY a mobile power supply, only need one battery, you can output 5V voltage for your phone, MP3, MP4, PSP charger, very easy. In order to power your electronic devices when your device needs 5V power supply, when you only have lithium battery, this module can be directly step-up to 5V, solve your problems. Note: This module is a fixed 5V output module Modules indicated above IN - (negative input), IN + (positive input), OUT-(negative output), OUT + (positive output) must be connected correctly, otherwise it may cause damage to the module This module has an LED light, when the charge when the LED lights can be used as indicator Package included: 3 x USB boost module

3Pcs 15W TDA7297 Dual-Channel Amplifier Board For Arduino Features: AC / DC, 2.0 / dual channel / stereo,12V/2A when using, the output power of 15W +15 W, peak up 25W +25 W Can be accessed by two 4-8Ω 10-50W speakers A large volume of small size High signal to noise ratio Upgraded version of the radiator, wider and thicker, better cooling effect Fit for Bookshelf speakers, CRT televisions, radios, and other small amplifiers Specifications: 1. Working voltage: DC 9-15V 2. Power: 15W +15 W 3. Maximum power:30W+30W 4. Output Impedance: 4-8Ω Package included: 3 x TDA7297 Version Amplifier Boards

3Pcs 2000W Speed Controller SCR Voltage Regulator Dimmer Thermostat Description: Material: plastic, metal Suitable for electric furnace, water heater, lamps, small motor, electric iron. etc Input Voltage: 220V Maximum Power: 2000W Adjustable Voltage: 50-220V AC Size: 5.3 x 4.7 x 2.8 cm Life span and easy installation Chip is 25A. If you use this for voltage adjustment, 1000W, under 5A is nice. If you use this for electrical machine, under 3A is nice. How to use: Connect this device with lamp or home appliance in a series connection, that is, Using the module's two wires connected to lamp or home appliances' disconnect FireWire or zero line. You can play a brightness adjustment, speed, pressure, temperature control effect, very convenient to use. Package included: 3 x Voltage regulator

3Pcs DC-DC 1V-5V To 5V 500mA Boost Converter Step Up Power Module Feature: Input voltage of DC 1V~5V, output 5V DC voltage is stable, the input to the output current of 500~600MA with two AA batteries, a single AA battery power supply output current 200 ma about for mobile phones camera, single-chip, digital products. High conversion efficiency up to 96% Ultra-small size, installed in a variety of small equipment With working lights Specification: Input voltage: DC 1V~5V Output voltage: DC 5V Output Current: 500mA PCB size: 17.55mm*25.22mm*5.85 mm En bloc Size: 17.55*32.53*8.3mm Weight: 14g Note: No USB port. Package included: 3 x Boost Converter Power Module

3Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 3 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA New toy for makers who want to build their own smart home system Overview: The wireless switch supports inching /self-locking mode. You can add the device to the APP eWeLink to remote control connected home appliances or devices. In self-locking mode, you can remote turn on/off connected devices immediately. When in inching mode, you have two wiring ways to select, whether turn on 1s and then auto-off or turn off 1s and then auto-on. Remote control by APP EweLink for iOS and Android. Supported functions include remote on/off, timing schedules, device sharing, group management. The self-lock/inching mode wireless switch has two power supply specification: 5V. No matter which specification you select, they have the same functions. Feature: There are two working modes for the module: inching mode and self-locking mode. Press the self-lock/inching mode button to switch between these two modes. When your module is switched to self-locking mode, you can turn on/off the connected appliance instantly. There is two wiring way. When your module is switched to inching mode, you can press on/off toggle button to turn on or off connected device. There are two kinds of wiring way. The first wiring way is to connect COM and NO with an appliance. In this way, when you press the setting button or APP to turn on, the connected appliance will be turned on for 1s and then auto turned off. The second wiring way is to connect NC and COM with an appliance. In this way, when you press the setting button or APP to turn off, the connected appliance will be turned off for 1s and then auto turned on. LED Indicator: There are 3 LEDs, the led beside self-lock/inching mode button indicates the working mode(on: self-locking mode, off: inching mode). The one beside on/off setting button indicates wifi status(enter pairing status: long press the setting button until led fast blink). Another one below the relay indicates relay on or off status(on: turn on the connected device, off: turn off connected device). Add device to eWeLink: Long press the setting button until the LED beside on/off setting button fast blinking. 1. Android: Add Device->select pairing method according to how the LED blinks->enter WiFi name and password->pairing and register->name device 2. iOS: go to phone setting->WiFi-> select the WiFi starts with ITEAD-********, enter default password to connect:12345678-> go to eWeLink->Add device->->select pairing method according how the LED blinks->enter WiFi name and password->pairing and register->name device Specification: Dimension:70.5mm*27.4mm*23mm Operating current: 5V DC Leds: indicate working mode, wifi status, relay on/off status. Two input interface Board consumption: Standby current: 80mA Max input current: 10A Support to control different voltage range Relay lifespan: more than one million times 100M electrical insulation resistance Electric shock voltage: 1000V Relay maximum pull time: 15ms Relay maximum release time: 5ms Operating temperature: -40 degrees to +70 degrees Operating Humidity 40% ~ 80% RH Application: The switch can be applied to access control, turn on PC, garage door, etc. Package includes: 3 x Module 3pcs 5V WiFi Remote Garage Door Opener Controller Work with Alexa & IFTTT Google home Wireless Remote Control Switch 3pcs 5V WiFi Remote Garage Door Opener Controller Work with Alexa & IFTTT Google home Wireless Remote Control Switch 3pcs 5V WiFi Remote Garage Door Opener Controller Work with Alexa & IFTTT Google home Wireless Remote Control Switch

Each head equivalent to that of a 400watt tungsten. Spiral 4x30watt comes with 3 Spiral Heads with independent switches for each bulb bank, 3 Light Stands, 12x 30watt Bulbs and 3 soft boxes 60x90cmProfessional fluorescent lighting kit with soft boxes that produces 800 watts total of useable light. The bulbs were developed specifically for digital imaging (photography & video).Flicker free and daylight balanced (5500K). Fluorescent bulbs are more efficient than standard incandescent bulbs, and produce less heat. One 30 Watt bulb is equal to a 100 watt incandescent bulb. This kind of light has the most advanced design, with a light weight body and stable color temperature at 5500kThis lighting kit gives you that soft light that eliminates harsh shadows virtually bathing your subject in light. Works great for portraits and product photo's. After hours of operation they generate hardly any heat, this makes them perfect for extended shoots.*Fluorescent lamps are more efficient than incandescent light bulbs because a greater proportion of the power used is converted into useable light rather than heat, allowing the fluorescent lamp to run cooler. Thus a fluorescent lamp requiring 30 watts of power, for instance, produces as much light as a 100 watt incandescent light bulb, but with up to 90% less heat.This is a kit for studio room photography and videography.There are two continuous 4x 30Watt Spiral lights with soft boxes.Each light has switches for individual bulb banks to adjust light intensity.Comes with a power cable with switch.This kit also includes two light stands.Details¿3PCS x Spiral Light ¿4 holder¿3PCS x Softbox¿3 x 60*90cm¿3PCS x 2m light stands12 PCS x 30watt spiral bulbs

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Feature: Two-color LED strobe fun DIY kit parts produced. Simple and practical, easy installation, low power consumption. Technical specifications: Product Name: DIY Flash Kit Color: Two color in random Dimensions: 9x3cm / 3.54 "x1.18" Voltage: 3-5V Package Included: 3 x Flash Kit DIY (with battery box) 3 x Instructions 3pcs DIY Two-color LED Flashlight Electronic Kit Circuit Board 3pcs DIY Two-color LED Flashlight Electronic Kit Circuit Board 3pcs DIY Two-color LED Flashlight Electronic Kit Circuit Board

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: 1, WiFi using industrial-grade chips ESP8266, modules for the ESP-13 with metal shield, anti-jamming; 2. Standard pin-compatible Arduino Uno, Mega2560 and other control board, Arduino UNO connection with the use of a voltage converter chip, so 3.3V and 5V are compatible; 3. Serial port DIP switch with dual control, so the expansion board can be used alone as an Arduino Uno expansion boards, it can also be used as ESP8266 expansion board use; 4, Real serial WiFi, Arduino program without any configuration; 5, Based on WiFi Web Server configuration parameters and serial port parameters; 6, Can be used as an independent ESP8266 development board, download the official AT commands firmware, NodeMCU open source firmware; 7, can be used as stand-alone expansion board Arduino Uno use, pin all leads. More information: User Manual: https://fineshang.gitbooks.io/esp8266-based-serial-wifi-shield-for-arduino-user/content/ Technical Specifications: DC 3.3V-5V 1, Wireless 802.11 b / g / n standards; 2, Support for STA / AP two modes of operation; 3, Built-in TCP / IP protocol stack, you can configure a socket; 4, Supports standard TCP / UDP Server and Client; 5, The serial port baud rate support: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 74800 / 115200 bps; 6, Serial data bits: 5 / 6 / 7 / 8 bits; 7, Serial Parity: None; 8, Serial port stop bits: 1/2 bit; 9, The standard Arduino UNO, Mega pitch; 10, Leads out Arduino Pin 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13; 11, Leads out ESP8266 GPIO 0 / 2 / 4 / 5 / 9 / 10 / 12 / 13 / 14 / 15 / 16 / ADC / EN / UART TX / UART RX; 12, RESET reset; 13, KEY multiplex configuration function keys; 14, Two DIP switches enable switching Arduino and ESP8266 serial port expansion; 15, WiFi current: continuous transmission: ≈70mA (200mA MAX), Standby: 16, Wireless transmission rate: 110-460800bps; 17, The working temperature: -40 ￢ﾄﾃ ~ + 125 ￢ﾄﾃ Package included: 3 x ESP8266 Web Server Port WiFi Expansion Board ESP-13 Configuration Mode: 3Pcs ESP8266 Web Server Port WiFi Expansion Board ESP-13 Compatible With Arduino 3Pcs ESP8266 Web Server Port WiFi Expansion Board ESP-13 Compatible With Arduino 3Pcs ESP8266 Web Server Port WiFi Expansion Board ESP-13 Compatible With Arduino

Buy 3Pcs DIY White Noise Signal Generator Kit Two Way Signal Output for R110.00