D1 r2

Buy D1 R2 V2.1.0 WiFi Uno Module Based ESP8266 Module for R150.00

Description: The D1 R2 is a mini wifi board based on ESP-8266EX. 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire supported(except D0) 1 analog input(3.3V max input) A Micro USB connection A power jack, 9-24V power input. Compatible withArduino Compatible with nodemcu Arduino NodeMcu Technical specs: Microcontroller ESP-8266EX Operating Voltage 3.3V Digital I/O Pins 11 Analog Input Pins 1 Clock Speed 80MHz/160MHz FLash 4M bytes Length 68.6mm Width 53.4mm Weight 25g Pin Function ESP-8266 Pin TX TXD TXD RX RXD RXD A0 Analog input, max 3.3V input A0 D0 IO GPIO16 D1 IO, SCL GPIO5 D2 IO, SDA GPIO4 D3 IO,Pull-up GPIO0 D4 IO,pull-up, BUILTIN_LED GPIO2 D5 IO, SCK GPIO14 D6 IO, MISO GPIO12 D7 IO, MOSI GPIO13 D8 IO,pull-down, SS GPIO15 G Gound GND 5V 5V - 3V3 3.3V 3.3V RST Reset RST

Description: Based on the ESP-8266EX. Arduino Compatible, you can use it on Arduino IDE. NodeMcu Compatible 11 Digital I/O pins 1 Analog Input pin OTA -- Wireless Upload(Program) On board switching power supply -- Max 24V input, 5V 1A output What's new about V2.1.0 Use BRT (Bias Resistor Transistor), easier into flash mode. Optimize the circuit, the system is more stable. Infos: Package included: 1 x New WeMos D1 R2 V2.1.0 WiFi Uno Based ESP8266 For Arduino Nodemcu Compatible

Description: Based on the ESP-8266EX. Arduino Compatible, you can use it on Arduino IDE. NodeMcu Compatible 11 Digital I/O pins 1 Analog Input pin OTA -- Wireless Upload(Program) On board switching power supply -- Max 24V input, 5V 1A output What's new about V2.1.0 Use BRT (Bias Resistor Transistor), easier into flash mode. Optimize the circuit, the system is more stable. Infos:   Package included: 5 x New WeMos D1 R2 V2.1.0 WiFi Uno Based ESP8266 For Arduino Nodemcu Compatible

Buy 3Pcs D1 R2 V2.1.0 WiFi Uno Module Based ESP8266 Module for R499.00

Buy 4-1pcs Aqara D1 Version Wireless Wall Switch Smart Light Remote Control ZigBee Switch for Mijia Mi for R2,782.00

Buy Geekcreit D1 Mini V3.0.0 WIFI Internet Of Things Development Board Based ESP8... (QUANTITY: 30PCS) for R2,527.95

NE555 + CD4017 LED Flash DIY Kit 3-5V Light LED Module Feature: Power supply voltage: 3-5V PCB Size: 88 x 25mm This kit is not included instruction. Principle: This kit is made up main circuit and decimal counter circuit, from the core of the self-excited NE555 multivibrator power through R2, R3, R4 charge the capacitor C1, C1 started when charging, NE555 2 feet still in low, so the output pin 3 goes high when power through R2, R3, R4 to charge C1 to 2/3 of the supply voltage, the output pin 3 level from high to low, NE555 conducting internal discharge, capacitor C1 through R4, R3, NE555 7 feet discharge until the voltage across C1 is less than 1 /3 of the supply voltage, NE555 and 3 feet level from low to high. C1 and charge again this cycle oscillations formed. Charging time: 0.695 (R2 + R3 + R4) C1, discharge time: 0.695 (R4 + R3) C1, R4 can be adjusted to control the output frequency of the oscillator, the oscillation clock signal is applied continuously NE555 CD4017 14 feet, the output terminal 10 is connected with the CD4017 10 LED, when the output terminal 10 turns CD4017 generated clock signal is applied at a high level, the D1 - D10 are sequentially lit to form a water -light effect. You can adjust the flow rate adjustment R4 LED lights. Note: This is a DIY kit, you need to assembly it. This kit is not included the instruction. Package included: 1 x NE555 + CD4017 LED Flash DIY Kit

  8 Channel CCTV Combo,DVR Kit Complete + 500GB HDD + 19" TV Monitor Includes: 8 Channel DVR 19" TV Monitor 500GB HDD     8 x CCTV day/Night Cameras 700/900, 3.6mm/6mm Mouse, Power adapter 20 Metre cable x 8 CCTV SECURITY KIT, 700/900 TVL CAMERAS, HDMI, SMARTPHONE CONNECT, INDOOR/OUTDOOR/DAY/NIGHT/MOTION DETECT Features: D1/CIF can be adjusted supports 8ch recording, network transmission, and playback simultaneously Support dual-stream transmission for all channels Support Multiplex operation: live, record, playback, backup, network transmission, mobile phone surveillance Support backup with USB Flash Disk, Movable hard disk,USB writer, Network Support video channel hidden and S.E.Q for single channel Support Digital Zoom and PIP preview Support password watermark function to avoid data modification Support Email alarm Mobile phone surveillance (Win CE/Symbian/iPhone/Blackberry) Support PTZ preset and Cruise Control Support Multi-language OSD Central management software and Networked system management Support mouse, remoter controller, panel operating 3G & Internet remote viewing   OPTIONAL: ADD ANY OF THE FOLLOWING HARD DRIVES TO YOUR KIT FOR A LOW PRICE: 250 GB = R400 500 GB = R650 1 TB = R850 2 TB = R1200   OPTIONAL 3: INSTALLATION We offer a service to Install the 8 Channel CCTV kit for R1600 per kit installed Shipping fees are according to your area at standard petrol rates of R2 - R5 per KM  Item weight: 12Kg

  4 Channel CCTV Combo,DVR Kit Complete + 500GB HDD + 19" TV Monitor Includes: 4 Channel DVR 19" TV LED 500GB HDD     4 x CCTV day/Night Cameras 700/900, 3.6mm/6mm Mouse, p/adapter 20 M cable x 4 CCTV SECURITY KIT, 700/900 TVL CAMERAS, HDMI, SMARTPHONE CONNECT,  Features: D1/CIF can be adjusted supports 4ch recording, network transmission, and playback simultaneously Support dual-stream transmission for all channels Support Multiplex operation: live, record, playback, backup, network transmission, mobile phone surveillance Support backup with USB Flash Disk, Movable hard disk,USB writer, Network Support video channel hidden and S.E.Q for single channel Support Digital Zoom and PIP preview Support password watermark function to avoid data modification Support Email alarm Mobile phone surveillance (Win CE/Symbian/iPhone/Blackberry) Support PTZ preset and Cruise Control Support Multi-language OSD Central management software and Networked system management Support mouse, remoter controller, panel operating 3G & Internet remote viewing   OPTIONAL: ADD ANY OF THE FOLLOWING HARD DRIVES TO YOUR KIT FOR A LOW PRICE: 250 GB = R400 500 GB = R650 1 TB = R850 2 TB = R1200   OPTIONAL 3: INSTALLATION We offer a service to Install the 4 Channel CCTV kit for R800 per kit installed Shipping fees are according to your area at standard petrol rates of R2 - R5 per KM  Item weight: 8Kg

Feature:   Power: 5V Component Position Quantity 4.7K 0805 R1, R2, R3, R4, R5, R6, R7, R10, R14, R18, R19, R20, R21 13 470ohm 0805 R8, R9, R11, R12, R13, R15, R16 7 10K 0805 R17 1 104P 0805 C1, C3 2 20P 0805 C4, C5 2 A type tantalum capacitor 10uF/10V 1206 E1, E2 2 LED 0805 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31, D32, D33, D34, D35, D36, D37, D38, D39, D40, D41, D42, D43, D44, D45, D46, D47 47 9012  SOT23 Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 8 STC89C51RC   LQFP44 U1 1   Package includes:   1 x DIY Six Digit Kit