ESP8266 Wireless Module Stable WIFI to UART Module SCW

Specifications:
Model: ESP8266
Material: metal,
Product color: black
Size: approx 25x 15mm
Net Weight: 2g

Package includes:
1x Wireless Module

Description: The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller access to your WiFi network. The ESP8266 is capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning, you can simply hook this up to your Arduino device and get about as much WiFi-ability as a WiFi Shield offers (and that’s just out of the box)! The ESP8266 module is an extremely cost effective board with a huge, and ever growing, community.

This module has a powerful enough on-board processing and storage capability that allows it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, including the front-end module, is designed to occupy minimal PCB area. The ESP8266 supports APSD for VoIP applications and Bluetooth co-existance interfaces, it contains a self-calibrated RF allowing it to work under all operating conditions, and requires no external RF parts.

There is an almost limitless fountain of information available for the ESP8266, all of which has been provided by amazing community support. In the Documents section below you will find many resources to aid you in using the ESP8266, even instructions on how to transforming this module into an IoT (Internet of Things) solution!

Note: The ESP8266 Module is not capable of 5-3V logic shifting and will require an external Logic Level Converter. Please do not power it directly from your 5V dev board.

Note: This new version of the ESP8266 WiFi Module has increased the flash disk size from 512k to 1MB.

Features:

• 802.11 b/g/n
• Wi-Fi Direct (P2P), soft-AP
• Integrated TCP/IP protocol stack
• Integrated TR switch, balun, LNA, power amplifier and matching network
• Integrated PLLs, regulators, DCXO and power management units
• +19.5dBm output power in 802.11b mode
• Power down leakage current of <10uA
• 1MB Flash Memory
• Integrated low power 32-bit CPU could be used as application processor
• SDIO 1.1 / 2.0, SPI, UART
• STBC, 1×1 MIMO, 2×1 MIMO
• A-MPDU & A-MSDU aggregation & 0.4ms guard interval
• Wake up and transmit packets in < 2ms
• Standby power consumption of < 1.0mW (DTIM3)

5A Adjustable CC/CV Display Step Down charge Module LED Panel Voltmeter Ammeter

5A Adjustable CC/CV Display Step Down charge Module LED Panel Voltmeter Ammeter

Description:      Specification:             Universal receiver.         100% Brand New         Module Properties: non-isolated constant current and voltage module         Rectification: non-synchronous rectification         Input voltage: 5V-32V         Output voltage: 0.8V-30V         Output current: adjustable maximum 5A         Conversion efficiency: 95% (the highest)         Switching frequency: 300KHz         Output ripple: 50mV (max) 20M bandwidth         Load Regulation: ± 0.5%         Voltage Regulation: ± 2.5%         Operating Temperature: -40℃to +85℃         Size: 51 * 26.3 * 14 (L * W * H) (mm)            Voltmeter Ammeter             Measurement accuracy: 0.1%         Refresh rate: about 200ms / times\         Display: 0.28"digital tube         Current Range 0A-5A         Voltage range 5V-30V         Display Color Red           Package Included:                       100% Brand New                           DC 5A 0.8V-30V Constant Current/Voltage LED Driver Step-Down Power Module  x 1

DC 5V to 3.3V Buck Module & Base Resistor Logic level converter for Arduino

Description: 

 

1 On board DC 5V to 3.3V DC-DC Step-Down Power Supply Buck Module,IC AMS1117-3.3;

2 On board 8 channels 5V to 3.3V(also 3.3V to 5V) Logic level converter,base Limiting resistor ;

3  Arduino Breadboard friendly;

4 PCB size:25* 15mm 

 

Level conversion principle:

Between 5V and 3.3V level plus 470 ohm current limiting resistor, to avoid being burned of 3.3V port.

So, when the LOW side no-load, HIGH side plus 5V level,LOW side test is still at 5V level，vice versa.

This is a normal phenomenon, not the level conversion function does not work. 

CY7C68013A-56 EZ-USB FX2LP USB 2.0 Develope Board Module Logic Analyzer EEPROM

• 100% brand new and high quality
• CY7C68013A-56 chip: low-power version of the enhanced 51-core, 16KB program data areas, clocked at 48Mhz, 480Mbps high-speed transmission protocol standards, in line with USB2.0 specification, backward compatible with USB1.1.
  
  Firmware, EEPROM: complete the program in-system programming directly with a USB cable to download the firmware, on-board to provide 16K (24LC128) a large program memory (EEPROM), used as storage VID / PID and the USB firmware, the program space to meet the CY7C68013A need.
  
  All GPIO After 2.54mm standard pin lead out, the great convenience learners expand their own design.
  
  With corresponding firmware can be achieved through the core board logic analyzer function.
  
   

MT8870 DTMF Voice Decoder Controller Module with Arduino UNO DUE MEGA2560 sketch

Package ：(Does not include Arduino UNO/MEGA2560): 1 PCS MT8870 DTMF decoder module; 1 PCS Male to Male audio wire (3.5mm jack ) ; Description:  Onboard Complex Frequency Decoder IC MT8870DS DC Power Supply Voltage：4.5V-5.5V(Typical: 5V) Operating Temperature : -40-+85 °C IO Drive : Current Maximum 10mA. PCB Size : 25.4x25.4MM This decoding module is for mobile and fixed telephone voice dialing decoding function Designed specifically for ARDUINO Board.also use for other MCU(AVR PIC MSP430 STM32 ARM7/9/10/11 FPGA/CPLD) Does not require any wiring, can be inserted directly into the UNO/MEGA2560/DUE board to use. 12 Digital outputs decode mobile and fixed telephone keys (0-9, * #).Another 4 Digital output(ABCD) can use "DTMF Dial" Software control. Arduino uno/mega2560 Code fragment: //*******************************************// #include <FlexiTimer2.h> int STD = A0; int Q1 = A1; int Q2 = A2; int Q3 = A3; int Q4 = A4; .... //Check once every 5 ms void dtmf_decode(void) { .... } void setup() { ..... } void loop() { //Complete the decoding if(Decod_finished) { Decod_finished = 0; Serial.print(" Activate : " ); switch(Q_dat){ case 1 : Serial.print("1 \n" ); break; case 2 : Serial.print("2 \n" ); break; case 3 : Serial.print("3 \n" ); break; case 4 : Serial.print("4 \n" ); break; case 5 : Serial.print("5 \n" ); break; case 6 : Serial.print("6 \n" ); break; case 7 : Serial.print("7 \n" ); break; case 8 : Serial.print("8 \n" ); break; case 9 : Serial.print("9 \n" ); break; case 10 : Serial.print("0 \n" ); break; case 11 : Serial.print("* \n" ); break; case 12 : Serial.print("# \n" ); break; case 13 : Serial.print("A \n" ); break; case 14 : Serial.print("B \n" ); break; case 15 : Serial.print("C \n" ); break; default : Serial.print("D \n" ); break; } ..... //****************************************************************************//         Typical application for Mobile phones:      Typical application for DTMF Dial Software:

315Mhz RF transmitter and receiver kit for Arduino ARM W MCU Raspberry Pi

Receiver module parameters 
1.Product Model: MX-05V
2.Operating voltage: DC5V
3.Quiescent Current: 4MA
4.Receiving frequency: 315MHZ
5.Receiver sensitivity:-105DB
6.Size: 30 * 14 * 7mm
7.External antenna: 32CM single core wire, wound into a spiral

Technical parameters of the transmitter head 
1.Product Model: MX-FS-03V
2.Launch distance :20-200 meters (different voltage, different results)
3.Operating voltage :3.5-12V
4.Dimensions: 19 * 19mm
5.Operating mode: AM
6.Transfer rate: 4KB / S
7.Transmitting power: 10mW
8.Transmitting frequency: 315M
9.An external antenna: 25cm ordinary multi-core or single-core line
10.Pinout from left → right: (DATA; VCC; GND)

Application environment 
Remote control switch, receiver module, motorcycles, automobile anti-theft products, home security products, electric doors, shutter doors, windows, remote control socket, remote control LED, remote audio remote control electric doors, garage door remote control, remote control retractable doors, remote volume gate, pan doors, remote control door opener, door closing device control system, remote control curtains, alarm host, alarm, remote control motorcycle remote control electric cars, remote control MP3.

Remark
1.VCC voltage module operating voltage and good power filtering;
2.Great influence on the antenna module reception, preferably connected to the 1/4 wavelength of the antenna, typically 50 ohm single conductor, the length of the antenna 315M of about 17cm;
3.Antenna position has also affected the reception of the module, the installation, the antenna as possible straight away from the shield, high pressure, and interference source; frequency used to receive, decode and oscillation resistor should match with the transmitter. 

Data Download

Package included：

1x 315Mhz RF transmitter and receiver kit Module for Arduino ARM WL MCU Raspberry

5V Eight 8 Channel Relay Module With Optocoupler For Arduino PIC AVR DSP ARM WW

Features:
100% Brand new and high quality!
This relay module is 5V active low.
It is an 8-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipments with large current.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Standard interface can be directly connected with microcontrollers.
Red working status indicator lights are conducive to the safe use.
Widely used for all MCU control, industrial sector, PLC control, smart home control.

Specifications:
Size: approx. 13.5 x 5.3 x 1.7cm (LxWxH)
Working voltage: 5V
Channel: 8 channel
Color: Blue
Net Weight: 110g

Package Includes:
1PC 5V 8 Channel Relay Module