The Arduino Uno is a universal programmable board that can be used for most DIY projects. It is indispensable for electronics hobbyist. The programmable board features an ATMEGA328p microprocessor and can be used for projects such as home automation, robotics among several others. This board is new and comes with a free USB cable for computer connectivity as well as header pins for easy assemblage and soldering. It is recommended that the latest version of the arduino integrated development environment (IDE) be used with this board to get seamless performance.
20Kg Digital Load Cell Weight Sensor + HX711 Weighing Module
Description of HX711 Weighing Module:
This module uses 24 high precision A/D converter chip HX711. It is a specially designed for the high precision electronic scale design with two analog input channel the internal integration of 128 times the programmable gain amplifier. The input circuit can be configured to provide a bridge type pressure bridge (such as pressureweighing sensor mode)is of high precisionlow cost is an ideal sampling front-end module.Features of HX711 Weighing Module:Two selectable differential input channelsOn-chip active low noise PGA with selectable gain of 3264 and 128On-chip power supply regulator for load-cell and ADC analog power supplyOn-chip oscillator requiring no external component with optional external crystalOn-chip power-on-resetSimple digital control and serial interface: pin-driven controlsno programming neededSelectable 10SPS or 80SPS output data rateSimultaneous 50 and 60Hz supply rejectionCurrent consumption including on-chip analog power supply regulator: normal operation < 1>Operation supply voltage range: 2.6 ~ 5.5VOperating Temperature Range:-20 degree ~ +85 degree
Description of 20KG Weighing Sensor:
Specification:Rated Load: 20KgRated Output: 1.0mV/V±0.15mV/VZero Output: ±0.1mV/VCreep: 0.03%F.S./30minInput End: Red+(power), Black-(power)Output End: Green+(signal), White-(signal)Recommended operating voltage: 3 ~ 12 VDCMaximum operating voltage: 15 VDCInput Impedance: 1115±10%ΩOutput Impedance: 1000±10%Ω
DS3231 Precision clock module
DS3231 Low-cost, high-precision I2C Real-Time Clock (RTC) TCXO with integrated (TCXO) and crystals. The device incorporates a battery input and maintains accurate timekeeping when main power supply is disconnected . Integrated Crystal improves long-term accuracy of the device and reduces the number of components of the production line. DS3231 RTC saves seconds, minutes, hours, day, date, month, and year information. It provides two calendar alarm clock and can be set and a square wave output can be set. A precision temperature-compensated voltage reference and comparator circuit monitors VCC state, detects power failures, provide a reset output, and to automatically switch to the backup supply when necessary. The device integrates an extremely accurate digital temperature sensor. Through I2C, Interface can be accessed. Accuracy of the temperature sensor is ± 3 ° C. The control circuit can be realized on-chip automatic power to detect and manage the main power supply and backup power (That low-voltage battery) switching between the power supply. If the main power fails, the device can continue to provide accurate timing and temperature performance is not affected . When the main power re-power or voltage value returns to within the permissible range , the on-chip reset function can be used to restart the system microprocessor.
Module parameters:1.size: 38mm (long) * 22mm (wide) * 14mm (High)2.weight:8g3 .Operating Voltage: 3.3--5.5V4 .Clock Chip: Precision clock chip DS32315 .Clock Accuracy: 0-40 °Within range, Accuracy 2 ppm, In error about 1 minute6 .Belt-in 2 Calendar alarm clock7 .A programmable square-wave output8.Real-time clock generating seconds, minutes, hours, day, date, month and year time, and provide valid until 2100 Compensation leap year9.Internal temperature sensor chip comes Accuracy ± 3 °10 .Memory chip: AT24C32 (Storage capacity 32K)11. The maximum transmission speed400KHz (Operating voltage5VTime)12. With rechargeable battery LIR2032, Ensure the system after power failure
Ideal For Satellite Dstv, Betnaija, All Free To Air To receive satellite signals, you need a LNB (Low NoiseBlock). What this does is picks up all the signals being bounced off the dish and filters out selected frequencies and amplifies the frequencies you need. It then sends the required frequencies to the satellite decoder box. Installation using a single LNBF allows programming from 1 satellite location and connection of up to 1 reciever. The benefit of the single LNBF is an installation is typically quicker, easier and cleaner than using separate components
Single Universal Digital LNBF Ku-Band Input Freq. Range: 10.7 ~ 12.75GHz
Output Freq. – Low Band: 950 ~ 1950MHz
Output Freq. – High Band: 1100 ~ 2150MHz
L.O. Freq. – Low Band: 9.750MHz
L.O. Freq. – High Band: 10.600MHz
18650 Battery Digital Display Charging Module -Dual USB 5V 2.4A With BMS Protection
Do you want to build your own QUICK CHARGE power bank from your spare 18650 battery cells? Then this 18650 5V 1A/2.4A Lithium Battery Digital Display Charging Module is for you. Just like a modern power bank, the module is equipped with Dual USB output to charge the gadgets at 1A / 2.1A. To charge the batteries, this module has two USB inputs one is C-type input, and the other is a Micro-USB input. Onboard, a brilliant blue-colored illuminating LED Display displays the real-time battery percentage in the 0–100% range, as well as the IN and OUT Signal. Furthermore, the board contains a connection for installing an LED to be used as a flashlight, which is generally found on a POWER BANK.
So, if you have any spare 18650 batteries cells in your scrap box, buy this module and create your own Power Bank, then share your DIY experience with us.
Caution: Pay attention to battery polarity while connecting it to the board, wrong polarity will burn the components.
Features:
Quick Charge Supported with 5V 2.4A output
The motherboard comes with protection functions: Charging overcharge protection, over-discharge protection, overcurrent protection.
Intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge.
Output voltage and current stability, will not harm user devices.
Package Includes:
1 x 18650 5V 1A/2.4A Lithium Battery Digital Display, Charging Module with Dual USB Output
