Betterdeal

• Module Features: Low noise, low ripple; with input and output power; indicator; with positioning holes.
• Multi Channels: This module integrates 4 LM 2596, which can output 4 groups of power supply of 3.3V, 5V, 12V and ADJ at the same time, strictly following the design specification of power supply circuit to layout wiring.
• Applications: Industrial automation control, LED illumination, industrial control equipment, communication equipment, power equipment, instrumentation.
• Voltage Stability: SMD aluminum electrolytic capacitors, high power inductors with high 0 value to ensure stable output voltage, the back of the PCB board window treatment is more conducive to the LM 2596 chip heat dissipation.
• Function: type power management monolithic integrated circuit switching voltage regulator, capable of outputting 3A drive current, while having good linearity and load regulation characteristics.

• The HC05 Bluetooth transceiver Module is Arduino compatible and consists of TTL outputs
• The HC05 Bluetooth transceiver module is used as UART serial converter module and can easily transfer the UART data through the wireless Bluetooth
• It can be used in master or slave configuration
• The Bluetooth module has a Frequency: 2.4GHz ISM band, PIO control and comes with an integrated antenna and edge connector
• Package Content: 1 HC05 Bluetooth Transceiver Module

• Breakthrough design, there are new breakthroughs, based on ESP12e
• WIFI support wireless 802.11 b/g/n standards.
• The new revision antenna rf performance optimization, communication distance is increased by 30 percent 50 percent compared to ESP12e
• Semi hole chip technology, the whole io leads, with metal shielding shell.
• Support STA / AP / STA + AP three operating modes.

• Push-button interface, playback can be edge or level activated
• Sample rate and duration changable by replacing a single resistor
• Signal 5V Power Supply; Can be controlled both manually or by MCU
• Record up to 10 seconds of audio; Dimensions: 37 x 54 mm

PCB BMS 6 Series 22V 18650 Lithium Battery Protection Board is a 6 string 22V circuit power tool mostly used for solar lighting, for dedicated 18650 battery packs. It is designed for 3.7V 18650 models lithium batteries for charging, Protection from overcharge and over-discharge. Battery protection board, as the name suggests battery protection board is mainly rechargeable (Refers to the lithium battery) and protects the integrated circuit board. Lithium battery (rechargeable type) so need protection, is determined by its own characteristics. As the lithium battery, its material determines itself can not be overcharge, over-discharge, overcurrent, short circuit, and ultra-high temperature charge and discharge, so lithium battery lithium components will always follow A protective plate with a sampling resistor, and a current fuse.

Application:

• Battery pack
• Consumer electronics product 12V voltage rating
• Power supply
• Power bank and charger
• Features/Specs:
• Battery: 6 Cell
• Overcharge detection voltage: 4.25 ± 0.025V
• Over-discharge detection voltage: 2.50 ± 0.08V
• Overcurrent Protection: 50A
• Working current: 12A
• Operating Temperature: -40~+85°C
• Balanced charge: None.
• Short circuit protection: Yes.
• Applicable assembly: Nominal 3.7V Batteries / 6 strings

• Throttle Range Can Be Configured To Be Compatible With Any Remote Control Available In The Market.

• Stall Torque: 3.2 kg / cm (4.8V), 4.1 kg / cm (6.0V); Dimension: 4cm * 2cm * 3.8cm
• Operating Speed: 23 sec/60° (4.8V), 19 sec / 60° (6.0V);Operating voltage: 4.8-7.2V
• Genuine S3003 servos are your easiest and most efficient way to upgrade your Futaba system
• Performance and reliability have made S3003 servos the favorite choice of professionals
• Surface Mount Technology improves reliability in applications where there is vibration

• Latest uno proto shield prototype expansion board with 170 ties mini breadboard.170 ties mini breadboard based for arduino,compatible with UNO R3.
• Components can be soldered directly on the board, or through the mini breadboard above.
• Used in conjunction with the Duemilanove ProtoShield prototype expansion board, the circuit is used to build a prototype
• Full Compatible with Arduino Mega ATmega1280 / MEGA2560.
• Wide prototyping area Seamlessly plugged into its pinout Reset button Indicator of power and status Solder components directly ICSP connector 14 pin SMD footprint (50 mils pitch) 20 pin Through Hole footprint (100 mils pitch) .

• Display construction: 128*64 DOTS
• Display mode: TN/STN
• Display type: Positive Transflective
• Backlight:VDD5.0V, Idd250mA
• Viewing direction:6 o'clock

• This Wireless Transceiver Module Is An Easy And Suitable Module If You Want To Setup Your Wireless Communication System

• Latest Raspberry Pi Zero W (Wireless)
• Official Raspberry Pi Zero Case included!
• Up-clocked to 1GHz, so 40% faster than Raspberry Pi 1
• 512MB RAM, Mini HDMI, WiFi & Bluetooth!
• Case comes with three lids - Plain, GPIO & Camera

Quad-band 850/900/1800/1900MHz. GPRS class 2/10. Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT command set). High-Quality Product (Not hobby grade). 5V interface for direct communication with MCU kit. Configurable baud rate. Built-in SIM Card holder. Built-in Network Status LED. Inbuilt Powerful TCP/IP protocol stack for internet data transfer over GPRS. Low power. Package Includes : 1 x SIM800 A Quad-Band GSM/GPRS Modem with RS232 Interface. 4 x Female Header Connector.

• Package Include: 2 x Nema 17 Stepper Motor
• Pulley: GT2; Gear OD: 15; Teeth: 24; Thickness: 8mm; Pitch: 2mm; Material: Metal
• Shaft Diameter: 5mm; Shaft Length: 20mm; Fitted with Pulley and Vibration absorber
• Torque : 4Kg-cm; Step Angle: 1.8 deg / step
• Voltage : 3-6 V; Ampere: 1.5A (max); Motor Block Size: 42x42x30mm (LxWxH)

• Material Type: Metal and plastic
• Color: Black; 1pcs 18650 Battery Holder Case Leads 3.7V Clip Type for Soldering / Connecting
• No. of package quantity: 1 case
• 18650 double Cell Battery Holder
• 7.4V li-ion Plastic case

• This module is a high-efficiency automatic buck-boost voltage regulator module, which uses the LTC3780 board as the main control chip.
• The input voltage can be higher than the output voltage or lower than the output voltage, while the output voltage remains stable. For example, if the output is set to 12V, then the output voltage will be constant at 12V when the input voltage changes between 5 and 32V.
• Advanced synchronous rectification technology with up to 98% conversion efficiency，working frequency: 200KHz.
• Output overcurrent protection, short circuit protection, overheat protection, 15A fuse at the input, ensure safety.
• This module has perfect protection functions and can be widely used in notebook power supply, vehicle power supply, industrial power supply, RC power supply, embedded system and so on.

• 4 Bits Tube Led Display  Is An Affordable Solution For Displaying The Output Data Of Your Arduino Project. Though The Data Displayed Is Restricted By Numbers Still It Allows Users To Show Some Characters Too Like A, B, C Etc. This 7 Segment Has Digits Which Are Controlled By Tm1637 Driver Chip

• Temperature Range: -55C - 83C; Body Size: 30x30x3.5mm/1.18"x1.18"x0.13"(L*W*H)
• Power: 36W; Rated Voltage: DC12V
• Cable Length(Approx): 30cm/11.8"; Current: 4A
• Package Content: 1 x Cooling Plate Module TES1-12704; Model: TES1-12704; Main Color: White
• Material: Ceramics; Net Weight: 15g

• Speed Control Switch Low Voltage DC 1.8V 3V 5V 6V 12V 2A;The Maximum Output Power: 30W;Duty Cycle adjustable: 0%-100%
• Motor Speed Controller with a self-recovery fuse 2A and a Power-On LED light
• Provide a continuous current of 2A to your DC brush motor or other DC load
• This mini controller will be disconnected automatically if the current is too large and the fuse will recover automatically after cooling
• Please just send us an email if there is any issue and we will solve it within 24 hours

• Humidity measurement precision: ±2 percenter
• Temperature measurement precision: ±0. 5
• Temperature range: -40~80
• Type: am2302
• 1 x DHT22 Module

• Type: USB 2.0 A to USB B
• Compatible Devices :- Server, Personal Computer, Printer
• Length: 30cm
• Color: Aqua
• Wide Compatible with common devices with USB type B connector