Description
The DS3231 is a low-cost, extremely accurate
Description
The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. The integration of the crystal resonator enhances the long-term accuracy of the device as well as reduces the piece-part count in a manufacturing line. The DS3231 is available in commercial and industrial temperature ranges, and is offered in a 16-pin, 300-mil SO package.
The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an active-low AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I²C bidirectional bus.
A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the active-low RST pin is monitored as a pushbutton input for generating a µP reset.
Features
Accuracy ±2ppm from 0°C to +40°C
Accuracy ±3.5ppm from -40°C to +85°C
Battery Backup Input for Continuous Timekeeping
Operating Temperature Ranges
Commercial: 0°C to +70°C
Industrial: -40°C to +85°C
Low-Power Consumption
Real-Time Clock Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100
Two Time-of-Day Alarms
Programmable Square-Wave Output
Fast (400kHz) I²C Interface
3.3V Operation
Digital Temp Sensor Output: ±3°C Accuracy
Register for Aging Trim
Active-Low RST Output/Pushbutton Reset Debounce Input
description:
This wireless transceiver module is an easy
description:
This wireless transceiver module is an easy and suitable module if you want to setup your wireless communication system with low cost!! It can achieve a good balance between wireless transition performance and cost! You can easily add it with your own MCU/ARM/PIC/AVR/STM32 system! What\'s more, this NRF24L01+ module is designed with Power amplifier and SMA antenna. This allowed you to use the wireless communication up to 1000 meters! (No barrier)
Frequence: 2.4GHz~2.5GHz
Operating voltage: 3 ~ 3.6V Max
Current: 115mA
Multi-frequency: 125 frequency
Support up to six channels of data reception
Communication distance: up to 1000 meters (No barrier)
Description:
Arduino NANO with ATmega32
Description:
Arduino NANO with ATmega328 Microcontroller is an ultra-low size Arduino board with AVR architecture and based on Atmel Atmega328P-AU microcontroller, which includes all capabilities of Arduino Duemilanove except DC power jack in the smallest size.
This miniature board is like an Arduino UNO type, but with a smaller size, which is suitable for a flyer and tiny robot. This Arduino is idealized for breadboard working too.
The Arduino NANO is equipped with 8 pins for analog inputs (to run 10-bit resolution means 1024 different values), and 14 digital IO pins that 6 pins can be used for PWM outputs, 2pins for serial receive and transmit data, 2pins for external interrupts, 4pins for SPI serial ports, and on for LED indicator. It also has a pin for reference voltage input for analog reference comparison and one pin for reset the microcontroller.
This Arduino chip operates with a TTL logic level of 3.3V DC and can be supplied with a recommended voltage of 7V to 9V DC. It can easily be supplied through a micro-USB to USB cable from any USB port or through the AC to DC or a 9V battery. It is also compatible with 1.0 Arduino pinout and any shields with 3.3V DC.
Arduino NANO can withstand maximum input and output voltage of 3.3V, which means that applying more than 3.3V DC to any input or output pins may damage the board. This board has all the requirements of the microcontroller support.
Arduino is an open-source platform based on simple userfriendly hardware and software.
The Arduino board can be employed as a slave operator, that performs simple digit works based on instructions.
Features:
Microcontroller: ATmega328
Architecture: AVR
Operating Voltage: 5 V
Flash Memory: 32 KB of which 2 KB used by bootloader
SRAM: 2 KB
Clock Speed: 16 MHz
Analog IN Pins: 8
EEPROM: 1 KB
DC Current per I/O Pins: 40 mA (I/O Pins)
Input Voltage: 7~9 V MAX
Digital I/O Pins: 22 (6 of which are PWM)
PWM Output: 6
Power Consumption: 19 mA
PCB Size: 18mm x 45 mm
Bluetooth Modules (802.15.1) BGM13P32F512GE Bluetooth module Supports high-throughput, long range, a
Product description
Package contents:
1 x Load cell
Product description
Package contents:
1 x Load cell 0-5KG
1 x HX711 24BIT Precision ADC Module on breakout board
10 x Breakaway header pins for HX711 connection
Everything you need to take accurate force measurements with and Arduino, Raspberry Pi, or other microcontroller in one complete package!
Information:
Load cell - Sturdy aluminum alloy construction. Strain gauges pre-attached with strain relieved wires. Accurately measures forces from 0-5kg (0-11 lb).
HX711 - This top of the line load cell amplifier mounted on a breakout board pairs perfectly with the load cell to provide fast, accurate force measurements. It measures small changes in the resistance of the strain gauges mounted to the load cell and passes these values directly to any microcontroller (like an Arduino or Raspberry Pi).
Load cell specs:
-Wire leads pre-attached, 22 cm (8.5 in) long
-Dimensions 12.7 mm high, 12.7 mm wide, 80 mm long (0.5 in x 0.5 in x 3.15 in)
-4 mounting holes, 15 mm spacing on each side. One side both holes tapped M4 thread, the other side both holes tapped M5 thread.
HX711 specs:
-Operation Voltage: 2.7V–5V
-Operation Current: < 1.5mA
-Mounted on breakout board
-Includes breakaway headers for connection, soldering required
Connections:
Red to E+
Black to E-
Green to A+
White to A-
Technical Data:
TXD: serial transmit, 3.3V TTL level.
Technical Data:
TXD: serial transmit, 3.3V TTL level.
RXD: serial receiver, 3.3V TTL level.
CTS: serial flow control, is not supported.
RTS: serial flow control, is not supported.
DC: simulation, burning clock pin.
DD: simulation, data burning feet.
RST: reset pin module requires low level of not less than 5ms reset.
VCC: module power foot, requiring DC 3.3V power supply current is not less than 100mA.
GND: module common ground.
LED: LEDs module output pin, high output, series resistor connected LED.
Slave bright one second every two seconds. Once connected, LED lit.
KEY:. Input pin, internal pulldown This foot high, clear the record for the host address from the machine.
PIO: extended functionality for setting the module master-slave mode, the default internal pull-up resistor from the machine; external 1K pull-down resistor connected to ground, as the host. Currently only supports 9600bps communication, does not support the AT commands. Host, when pass-through traffic from the machine, there must be a certain time interval between packets. For example, the packet length is 500 bytes, then the transmission time interval between packets can be set to no less than 600ms. Otherwise, you may lose data.
Ebyte nRF51822 BLE 4.2 Low power E73-2G4M04S1D 2.4GHZ 4dBm RF Bluetooth Module
ESP8266 ESP-12F Serial WIFI Model ESP-12E Upgrade Remote Wireless WIFI Module ESP12F ESP12
Features: - Ultra-small 802.11b/g/n Wi-Fi + BT/BLE SoC module
Features: - Ultra-small 802.11b/g/n Wi-Fi + BT/BLE SoC module - Low-power dual-core 32-bit CPU for application processors - Up to 240MHz, up to 600 DMIPS - Built-in 520 KB SRAM, external 4M PSRAM - Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC - Support OV2640 and OV7670 cameras with built-in flash - Support for WiFI upload -Support TF card - Support multiple sleep modes - Embedded Lwip and FreeRTOS - Support STA/AP/STA+AP working mode - Support Smart Config/AirKiss One-click distribution network - Support for serial local upgrade and remote firmware upgrade (FOTA) Description: CES NEWS' Geekcreit ESP32-CAM WiFi + Bluetooth Camera Module Development Board ESP32 With Camera Module OV2640 2MP - Board & Shield Motherboard & Development Board. The ESP32-CAM has a very competitive small-size camera module that can operate independently as a minimum system, measuring the only 27*40.5*4.5mm, with deep sleep current and a minimum of 6mA. ESP-32CAM can be widely used in various IoT applications. It is suitable for home smart devices, industrial wireless control, wireless monitoring, QR wireless identification, wireless positioning system signals and other IoT applications. It is an solution for IoT applications. ESP-32CAM is packaged in and can be directly plugged into the backplane for quick production. It provides customers with a highly reliable connection method and is convenient for use in various IoT hardware terminals. Note: This product contains the OV2640 Camera Module. If you need to use the OV7670 camera, please purchase it separately. Package Included: 1 x ESP32-CAM Module 1 x Camera Module OV2640 2MP Product Specifications: ESP32-CAM Picture Output Format Rate: Test environment: camera model: OV2640 XCLK: 20
About this item 32 bit MCU, 2.4 GHz WiFi + Bluetooth LE SoC Suppor
About this item 32 bit MCU, 2.4 GHz WiFi + Bluetooth LE SoC Supporting IEEE 802.11 b/g/n and Bluetooth 5 Based on ESP32-S3-WROOM-1 8MB Flash + 2 MB PSRAM About ESP32-S3 hardware resources ESP32-S3 is a low-power MCU-based SoC that supports 2.4 GHz Wi-Fi and Bluetooth Low Energy (Bluetooth LE). ESP32-S3 has a complete Wi-Fi subsystem and a Bluetooth LE subsystem, State-of-the-art power and RF performance. S3 provides a rich set of peripheral interfaces, and supports ultra-low-powerapplications. Different security features allow the device to meet stringent security requirements. Instructions for using the USB cable The on-board USB port of the YD-ESP32-S3 core board is the Type-C interface.It can communicate with the computer and provide power. The cable can be used: USB Type A to Type-C cable or CC cable Note the distinction between the commonly used USB A port to Type-C cable that can only be charged, which cannot be used for communication between YD-ESP32-S3 and the host.
WiFi Modules (802.11) Module 4 MB Flash ESP32-D0WDQ6
WiFi Modules (802.11) SMD Module, ESP32-D0WD, 32Mbits SPI flash, UART mode, PCB antenna
Description The HC-12 is a 100mW multi-channel wireless transceiver you
Description The HC-12 is a 100mW multi-channel wireless transceiver you can use in your projects to transmit and receive serial information. The HC-12 is a half-duplex wireless serial communication module with 100 channels in the 433.4-473.0 MHz range that is capable of transmitting up to 1 km. This project will begin by using the HC-12 to create a wireless link between two computers and end with a second article that creates a simple wireless GPS tracker.
Overview:
Core51822 is a wireless module based on nRF518
Overview:
Core51822 is a wireless module based on nRF51822 - the Multiprotocol Bluetooth® 4.0 low energy/2.4 GHz RF SoC designed for ULP (ultra low power) wirelesss applications.
Core51822 Specifications
Onboard chip: nRF51822
Communication distance (open outdoor@1M data rate): 30m
Frequency range: 2.4GHz
Operating voltage: 2.0V ~ 3.6V
Operating temperature: -40℃ ~ 85℃
Dimension (PCB): 24.5mm x 32.26mm
Expansion pinheader: all the I/Os except P0.26 and P0.27
Pinheader pitch: 2.00mm
Spacing between pinheaders on the left side and the right side: 18.00mm
Antenna: onboard antenna
NRF51822 Features:
2.4 GHz multiprotocol RF transceiver
ARM® Cortex™-M0 32 bit processor
128 bit AES HW encryption
128kB flash & 16Kb RAM
Programmable Peripheral Interconnect (PPI)
Digital interfaces: SPI, I2C, UART
10 bit ADC
Programmable output power: -20 to +4 dBm
Independent application development and protocol stack
Fully compatible with NRF24L series
Pinout compatible with NRF51xxx series
Global separate power management
Operating voltage: 1.8 V ~ 3.6 V
Applications:
Wearable devices
Bluetooth intelligent application
Mobile phone accessories
RFID labels
Smart home appliances
Industry control
Data acquisition system
Revision History
2015.06, Core51822 upgrades the onboard chip to Rev3, features RAM 16K,
supports higher version SDK, and all the demo codes are still compatible with the Rev2 ones.
Package Include:
1 x Low Power Consumption BLE4.0 Bluetooth 2.4 GHz Wireless Module NRF51822
Description
Chip board ENC28J60/SS.
The board 25MHZ
Description
Chip board ENC28J60/SS.
The board 25MHZ crystal.
The network interface board HR911105A.
3.3V power supply pin.
Size: 48.8 (mm) x 18.5 (mm).
Size: 18*18*2.8 (±0.2)mm- SPI Flash: 1MB-The type of interface: UART/GPIO/ADC/PWM-The quantity of I
System-On-Modules - SOM System-On-Modules - SOM Zynq-7020, 1GB DDR3, 4GB eMMC
Description
ESP8266 is a highly integrated chip designed
Description
ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.
Instruction & Steps of How to use:
1. Download the Arduino IDE, the latest version.
2. Install the IDE
3. Set up your Arduino IDE as: Go to File->Preferences and copy the URL below to get the ESP board manager extensions: http://arduino.esp8266.com/stable/package_esp8266com_index.json Placing the http:// before the URL lets the Arduino IDE use it...otherwise it gives you a protocol error.
4. Go to Tools > Board > Board Manager> Type "esp8266" and download the Community esp8266 and install.
5. Set up your chip as:
Tools -> Board -> NodeMCU 1.0 (ESP-12E Module)
Tools -> Flash Size -> 4M (3M SPIFFS)
Tools -> CPU Frequency -> 80 Mhz
Tools -> Upload Speed -> 921600
Tools-->Port--> (whatever it is)
6. Download and run the 32 bit flasher exe at Github(Search for nodemcu/nodemcu-flasher/tree/master/ at Github)
github.com/nodemcu/nodemcu-flasher/tree/master/Win32/Release
Or download and run the 64 bit flasher exe at:
github.com/nodemcu/nodemcu-flasher/tree/master/Win64/Release
7. In Arduino IDE, look for the old fashioned Blink program. Load, compile and upload.
8. Go to FILE> EXAMPLES> ESP8266> BLINK, it will start blinking.
This module uses the newest 2.4ghz transceiver from Nordic Semiconductor, the nrf24l01+. It integ
This module uses the newest 2.4ghz transceiver from Nordic Semiconductor, the nrf24l01+. It integrates a complete 2.4ghz RF transceiver, RF synthesizer, and baseband logic including the Enhanced shockburst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. The ‘+’ version of the IC has improved range, sensitivity, and data rates. The command set is backward compatible with the original nrf24l01.Worldwide 2.4GHz ISM band operation 250kbps, 1Mbps and 2Mbps on air data rates Ultra low power operation Power supply : 1.9~3.6V Dimension : 12x18mm
Description:
Brand new and high quality.
Maximum op
Description:
Brand new and high quality.
Maximum operating speeds up to 2Mbps, GFSK modulation efficiency, Anti-interference ability, Particularly suitable for industrial control applications.
125 Channels, Multi-point communication and frequency hopping to meet the communication needs.
Built-in hardware CRC error detection, Multipoint communication address control.
Low-power 1.9 ~ 3.6V, only 1uA on Power down mode.
Built-in 2.4Ghz antenna.
Available software to set the address, only received local Address when output data(Provide interrupt instruction), can be directly connected to a variety of microcontrollers, Software programming is very convenient.
Built-in voltage regulator.
Standard DIP Pitch Interface for embedded applications.
Size:3.3cm x 1.4cm - 1.29inch x 0.56inch.
Package Includes:
1pc NRF24L01+ Wireless Transceiver Module
NRF51822-02 module is a data transmission module, the BLE Blu
NRF51822-02 module is a data transmission module, the BLE Bluetooth MCU integrated SOC chip nRF51822-QAFF ,the internal integration of the underlying low power Bluetooth 4.0 standard protocol, module interface is the standard UART interface, built-in interrupt output prompt, When the module receives data from a pair of Bluetooth transmission, it outputs a high level signal, which is used to notify the external device, At the same time, the module is equipped with hardware.make enable foot,In the absence of data transfer,can be set to make the foot high,to disable the function of serial data transmission, thereby reducing the power consumption of the system.
Characteristic:
Low power BLE4.0 Bluetooth single mode chip
The integration of the standard BLE4.0 protocol stack
Standard UART (TTL) interface, can be directly connected to the external MCU serial or serial port
9600 or 38400 optional hardware serial baud rate, the default is 9600
Interrupt output prompt
Hardware enable control
Operating distance: 0~20 m,class II
Power supply voltage: 3.3V
The module comes with a PCB antenna, and can also use the external antenna
Module size: 16.5*28.8mm
Application case:
Short distance automatic data acquisition
Industrial remote control and telemetry
Handheld, handheld machine, POS machine
Wireless keyboard, wireless mouse, game handle
Bluetooth dimming, light control system
Intelligent home control system
Anti drop device
Bluetooth sensor
Mobile phone accessory products
Description:
Type : Voltage Regulator
Condition : N
Description:
Type : Voltage Regulator
Condition : New
Application : Computer
Supply Voltage : 1
Dissipation Power : 1
Model Number : MW
is_customized : Yes
Wireless Module : SMD NRF24L01