3pcs low voltage dc

3Pcs Low Voltage DC 1.8V 3V 5V 6V 12V 2A Motor Speed Controller PWM 1803B

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA 3Pcs Low Voltage DC 1.8V 3V 5V 6V 12V 2A Motor Speed Controller PWM 1803B Specification: Input supply voltage: 1.8V-15VDC The max output power: 30W The max continuous output current:2A Duty Cycle adjustable: 0%-100% Size: 32*32*15mm Features: This Brand New 1803B DC Motor Speed Controller allows controlling the direction of a DC the motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully the product adjust from 0%-100%. With a self-recovery fuse 2A and a Power-On LED light. Enable to provide a continuous current of 2A to your DC motor or other DC load. Package included: 3 x motor speed controller 3Pcs Low Voltage DC 1.8V 3V 5V 6V 12V 2A Motor Speed Controller PWM 1803B 3Pcs Low Voltage DC 1.8V 3V 5V 6V 12V 2A Motor Speed Controller PWM 1803B 3Pcs Low Voltage DC 1.8V 3V 5V 6V 12V 2A Motor Speed Controller PWM 1803B

Buy 3pcs Low Voltage High Performance Transmitting Module 315MHz TX8 DC1.8V-3.6V ASK TTL Super Heterodyn for R161.00

Buy 3pcs Low Voltage High Performance Transmitting Module 315MHz TX8 DC1.8V-3.6V ASK TTL Super for R175.00

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

Specifications: · 300W 8A 7-32V to 0.8-28V DC CC CV Buck Step-Down Converter Power Supply Step Down Module Adjustable Voltage Regulator LED Driver · High-power, constant current LED driver · Battery charger · Vehicle-mounted power supply · Low voltage system power supply · Non-isolated step-down CC CV Buck module with on-board LED load indicator · Input voltage: DC 7-32 V · Output Voltage: DC 0.8-28 V (Adjustable) · Output Current: 8A (MAX), more than 60Deg please strengthen heatsink · Continuous Current Range: 0.2-8A Adjustable · Output Power: 300W (MAX) · Conversion efficiency: 95% (more input voltage, more efficiency) · Output ripple: 50mV · Working Temperature: industrial (- 40 ° c to +85 °c) (environmental temperature, more than 40 degrees, please reduce power to use, or - enhance cooling) · No-load current: 20mA (input 24V,Output 12V for reference) · Voltage regulation: ± 1% · Load regulation: ± 1% · Dynamic response speed: 200uS 5% · Short circuit protection: YES · Input Reverse protection: No (please comply with a reverse protection or connect a diode at input parts.) · Size: 65 x 47 x 22 mm · On-board LED load indications: red = load present (eg. 'battery charging'), green = no load (eg. 'battery charged' or output disconnected) Features: 1. Fixed turn lamp current is 0.1 times the current value(Used to identify whether the battery is fully charged When charging). 2. Made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20°C to 100°C constant current 1A, temperature drift less than 1%). Particularly suitable for LED driver. 3. High output current, the max output current can reach 8A. 4. Four high frequency capacitance, can lower output ripple, enhance the work stabilization. 5. Double heat sink design. MOS schottky diode independent heat sink,which heat dissipation is good, and won't affect each other. 6. Using large size Sendust Core and double pure copper wiring, improve working efficiency, reduce fever. 7. 3296 multiturn potentiometer,high accuracy voltage and current regulation, good stability. 8. Double color lamp, working condition be clear at a glance 9. Voltage and current are adjustable,wich effect is good. Applications: 1. High-power LED driver. 2. Lithium battery(or lead accumulator) charge. 3. Vehicle-mounted power supply. 4. Low voltage system power supply. 5. 6V, 12V, 14V, 24V battery charge. 6. On-board laptop power supply. 7. regulated power supply. 8.Low voltage power supply system. Module adjustment: ￢ﾀﾋ 1. When the module output voltage can not be adjusted (the output voltage is always equal to the input voltage) Please adjust the potentiometer counterclockwise 20 laps (20 turns) or more till it works.￢ﾀﾋ 2. Turn trimmers CLOCKWISE to INCREASE, ANTICLOCKWISE to DECREASE. 3. When adjust the blue potentiometer,please use a multimeter to monitor the voltage 4. The trimmer nearest the voltage output adjusts the output CURRENT (CC) 5. The trimmer nearest the voltage input adjusts the output VOLTAGE (CV) Charger application - intructions: 1. First determine the float voltage and charging current required by the battery to be charged (the ‘target battery'). The target battery disconnected from the module output, apply a voltage of 7V - 32V to the module input, being sure to observe correct polarity. 2. Using the CV trimmer, adjust the output voltage to about 5V. 3. Switch your multimeter into its 10A current scale and measure the module's short-circuit output current. Turn the CC trimmer to adjust the current to the charging current required by target battery. 4. Using the CV trimmer, adjust the module's output voltage to the float voltage required by the target battery. 5. Connect the target battery to the module output, observing correct polarity. Charging of the battery should commence ￢ﾀﾋ Constant current LED Driver Application - Instructions: 1. First determine the operating current and maximum operating voltage of the LED you need to drive. 2. With the CV trimmer, adjust the output voltage to about 5V. 3. Switch your multimeter into its 10A current scale and measure the module's short-circuit output current. Turn the CC trimmer to adjust the current to the operating current of your LED. 4. Adjust the CV trimmer to make the output voltage reach the maximum LED operating voltage. 5. Connect LED, test. Package included: 3 x 8A 300W buck adjustable power supply module

Specifications: · 300W 8A 7-32V to 0.8-28V DC CC CV Buck Step-Down Converter Power Supply Step Down Module Adjustable Voltage Regulator LED Driver · High-power, constant current LED driver · Battery charger · Vehicle-mounted power supply · Low voltage system power supply · Non-isolated step-down CC CV Buck module with on-board LED load indicator · Input voltage: DC 7-32 V · Output Voltage: DC 0.8-28 V (Adjustable) · Output Current: 8A (MAX), more than 60Deg please strengthen heatsink · Continuous Current Range: 0.2-8A Adjustable · Output Power: 300W (MAX) · Conversion efficiency: 95% (more input voltage, more efficiency) · Output ripple: 50mV · Working Temperature: industrial (- 40 ° c to +85 °c) (environmental temperature, more than 40 degrees, please reduce power to use, or - enhance cooling) · No-load current: 20mA (input 24V,Output 12V for reference) · Voltage regulation: ± 1% · Load regulation: ± 1% · Dynamic response speed: 200uS 5% · Short circuit protection: YES · Input Reverse protection: No (please comply with a reverse protection or connect a diode at input parts.) · Size: 65 x 47 x 22 mm · On-board LED load indications: red = load present (eg. 'battery charging'), green = no load (eg. 'battery charged' or output disconnected) Features: 1. Fixed turn lamp current is 0.1 times the current value(Used to identify whether the battery is fully charged When charging). 2. Made from a dedicated benchmark IC and high-precision current sensing resistor, proving a more stable constant current, (when 20°C to 100°C constant current 1A, temperature drift less than 1%). Particularly suitable for LED driver. 3. High output current, the max output current can reach 8A. 4. Four high frequency capacitance, can lower output ripple, enhance the work stabilization. 5. Double heat sink design. MOS schottky diode independent heat sink,which heat dissipation is good, and won't affect each other. 6. Using large size Sendust Core and double pure copper wiring, improve working efficiency, reduce fever. 7. 3296 multiturn potentiometer,high accuracy voltage and current regulation, good stability. 8. Double color lamp, working condition be clear at a glance 9. Voltage and current are adjustable,wich effect is good. Applications: 1. High-power LED driver. 2. Lithium battery(or lead accumulator) charge. 3. Vehicle-mounted power supply. 4. Low voltage system power supply. 5. 6V, 12V, 14V, 24V battery charge. 6. On-board laptop power supply. 7. regulated power supply. 8.Low voltage power supply system. Module adjustment: ??br /> 1. When the module output voltage can not be adjusted (the output voltage is always equal to the input voltage) Please adjust the potentiometer counterclockwise 20 laps (20 turns) or more till it works.??br />2. Turn trimmers CLOCKWISE to INCREASE, ANTICLOCKWISE to DECREASE. 3. When adjust the blue potentiometer,please use a multimeter to monitor the voltage 4. The trimmer nearest the voltage output adjusts the output CURRENT (CC) 5. The trimmer nearest the voltage input adjusts the output VOLTAGE (CV) Charger application - intructions: 1. First determine the float voltage and charging current required by the battery to be charged (the ‘target battery'). The target battery disconnected from the module output, apply a voltage of 7V - 32V to the module input, being sure to observe correct polarity. 2. Using the CV trimmer, adjust the output voltage to about 5V. 3. Switch your multimeter into its 10A current scale and measure the module's short-circuit output current. Turn the CC trimmer to adjust the current to the charging current required by target battery. 4. Using the CV trimmer, adjust the module's output voltage to the float voltage required by the target battery. 5. Connect the target battery to the module output, observing correct polarity. Charging of the battery should commence ??br /> Constant current LED Driver Application - Instructions: 1. First determine the operating current and maximum operating voltage of the LED you need to drive. 2. With the CV trimmer, adjust the output voltage to about 5V. 3. Switch your multimeter into its 10A current scale and measure the module's short-circuit output current. Turn the CC trimmer to adjust the current to the operating current of your LED. 4. Adjust the CV trimmer to make the output voltage reach the maximum LED operating voltage. 5. Connect LED, test. Package included: 3 x 8A 300W buck adjustable power supply module

Specification: Modle: YS-04 Name: Step down voltmeter module Input voltage: DC 4.5 ~ 40V Output voltage: 5V (when the input voltage is between 6.5V ~ 40V) Output current: 2A Size: approx 5.7 x 2 x 1cm(L x W x H) Application: can be used on car, electric bike, motorcycle for voltage measurement and to charge phone, iPad, Mp3 etc. Feature: The voltmeter has automatic calibration function. With reverse connection protection. With overheat protection and short circuit protection. With USB power indicator light. High efficiency and low ripple. Instructions: When you need to charge the mobile phone, Ipad, MP3 and other digital products, touch the "output enable" button, then the USB power indicator light on, the USB output voltage 5V; When you need to turn off the digital tube, touch the "low power" button, then the module into the ultra-low power standby mode, USB output is also turned off accordingly. Package included: 3 x Step down voltmeter module

Feature: The power supply is fully isolated industrial grade built-in power module with temperature protection, overcurrent protection and short circuit full protection, AC85 ~ 265V wide voltage input, high and low voltage isolation, DC12V1A 5V1A dual isolated output voltage, 431 regulated, output with EMI filter circuit, with light, with mounting holes, cost-effective. Specification: Working temperature: -20 ??to 60 ??br />Relative humidity: 40% RH - 90% RH Input voltage range: 85V - 265V (typical: 110/220) (under full load conditions) Input Current: 0.027 (AC110V) 0.0136 (AC220V) (under full load conditions) Input surge current: 20A (under full load conditions) Size: 7.5 x 4.0 x 4.0 (cm) Output regulation characteristic: Output voltage Minimum current Maximum current Peak current Output voltage range Ripple +12V 0A 1A 1.2A 11.80~12.5V 150mV +5V 0A 1A 1.2A 4.90~5.1V 80mV Other output characteristics: Item Unit Min Typical values Max Test Conditions Output Power W 0 17 18.5 DC output power Output efficiency % 84 Rated load Boot shutdown overshoot % 10

Features: 1. Using high-quality dual-panel design, with power indicator and TTL signal output instructions 2. there are four screw holes for easy positioning 3. Analog output voltage with the higher concentration of higher voltage 4. TTL output valid signal is low. (Low-level signal when the output light can be directly connected to the microcontroller or relay module) 5. The switching signal having a DO (TTL) output and analog output AO Special note: After the sensor is powered, needs wait about 20S, measured data was stable, heat sensor is a normal phenomenon, because the internal heating wire. Specifications: Size: 32 x 22 x 27mm Chip: LM393, ZYMQ-2 gas sensors Working voltage: DC 5V AO output:0.1-0.3 V (relative to pollution), the maximum concentration of a voltage of about 4V DO output: TTL digital 0 and 1 (0.1 and 5V) Input voltage: DC 5V Power consumption (current): 150mA Package included: 3 x MQ-2 gas sensor module

Features: 1.Dual H-bridge motor driver, can drive two DC motors or a 4-wire two-phase stepper motors 2.Built-in TSD, without worrying about motor stall 3.Ultra-small size, suitable for assembly and car Specification: 1.Module supply voltage: DC 2V-10V 2.Signal input voltage: DC 1.8-7V 3.Single working current: 1.5A 4.Peak current up to 2.5A 5.Low standby current (less than 0.1uA) 6.Built-in common conduction circuit, the input terminal vacant, the motor does not malfunction 7.Size: 24.7 x 21 x 7mm 8.Mounting hole diameter: 2 mm Package included: 3 x Mini dual channel DC motor driver module

Specifications: Working voltage: DC 3.8V-5.5V Working current (5V): typical current 6mA Input and output signals (3 lines): GND, VCC is power, and VCC is 3.8V-5.5V Obstacle detection time (range from obstacle-free to obstacle-free or obstacle-free to obstacle-free): Working Principle: Sensors actively emit infrared light, according to reflected light detection, if detected obstacles, OUT foot output 0, otherwise 1. Detection distance (test environment, indoor, maximum power, Voltage 5V, power consumption 6.5ma): 1. white walls: 100cm 2. IBM black computer cover: 20cm 3.1 fingers: 18cm 4. palm: 30cm 5. a transparent pearl pen: 20cm Features: The new version has been greatly improved and has been gradually improving. 1. super miniature and designed with mechanical mounting holes. 2. Low power consumption, wide operating voltage range. The transmitting signal adopts modulation signal, long distance, good anti-jamming, and can work outdoors under non-direct sunlight (the distance will be shorter). 3. distance adjustable, ranging from 3cm-100cm. 4. Obstacle avoidance uses window technology to avoid the problem of critical zone. The sensor works stably. The user can directly use the output signal without considering the signal jumping. Usage: There are many precise adjustable potentiometers on the board, which can be adjusted according to the use environment. The adjusting range is from 3cm to 100cm. Because it is a reflection principle, it is related to the specific reflection target and can be adjusted according to the situation. The circuit board has a red LED that emits light when obstacles are detected. OUT output continues to be low. Obstacle-free is OUT output continues to be high. Sensor active infrared reflectance detection, so the reflectance and shape of the target is the key to the detection range, in which the black detection range is the smallest, the white is the largest; small area object distance, large area distance. Package Included: 3 x Obstacle Avoidance Sensor

Features: Excellent for cooling heatsinks on hot ends, prints, or other cooling needs Made of high quality PBT+30% glass line +VO Bearing is high precision, long life and low noise Specifications: Temperature of usage environment: -20￢ﾄﾃ to 75￢ﾄﾃ Working environment temperature: 40￢ﾄﾃ Service life: Can be continuous working 24 hours Speed: 4200±10%RPM (r/min) Voltage: DC 24V Rated current: 0.1A Size: 50 x 50 x 15mm Inlet size: 31mm Outlet size: 20*15mm Noise: 25DBA Structure: Sleeve bearing Package included: 3x Cooling Fan

File download: Click here to open Description: The speed sensor is a wide voltage, high resolution, short response speed, digital output speed module, with a black code can measure the motor speed. Parameter: Working voltage: DC 4.5-5.5V Drop pressure drop: Vf = 1.6V Launch tube current: If Signal output: single channel; TTL level Resolution accuracy: 0.01mm Long size: 2.6mm x 2.2mm The main components: LM393, on the radio infrared measurement frequency: 5KHz Photoelectric slot width: 6MM Interface definition: VCC: Power supply positive GND: Power supply negative OUT: Signal output, can be directly connected to the microcontroller, standby output low level; detected something, output high level, while the indicator light off. Package includes: 3 x Speed Code Sensor 3 x Grid Plate 3 x Cable