Citadel Universal Technologies https://validator.w3.org/feed/docs/rss2.html WS2812B 8-Bit RGB LED Strip(BX1) TO-220 Voltage Regulators – LM317T / L78xx Series (5V–24V Options) BX2 TM1637 4-Digit 7-Segment Display For Arduino(BX1) Thickened Heat Lamp 250W TCS230/TCS3200 Color Recognition Sensor Module(BQ) SIM800L V2.0 5V Wireless GSM GPRS MODULE Quad-Band(BX4) SIM800C GSM/GPRS + Bluetooth Module – Quad-Band Cellular Module with SMS, Voice, GPRS & TTS SD Card – TF 2GB Memory Card(AWY) RFM96W 433 MHz Wireless LoRa Module – Long-Range RF Transceiver for IoT & Remote Monitoring(BF) Raspberry Pi Pico W – RP2040 ARM Cortex M0+ CYW43439 – WiFi(BX1) Potentiometer 50KOhm(BX3) Potentiometer 250Kohm(BX3) PCA9685 16 Channel 12 Bit PWM Servo Driver Board Module Controller for Arduino And Raspberry Pi(BX1) Mini MP3 Player mini Player SD card voice module MP3-TF-16P(BX2) Metal Oxide Varistor (MOV) – Surge Protection Varistors for AC & DC Circuits(BR) LM358 Dual Operational Amplifier IC – Low Power Op-Amp for Arduino, Sensor & Audio Projects(BL) ISD1820 Recording Module with 0.5W Speaker(BX2) IRF3205 MOSFET Hot Melt Glue Sticks Ø7mm x 100mm – Clear Adhesive Sticks(BF) HenLv, AC-DC Switching Power Supply (GK220S-35W series) HenLv, AC-DC Switching Power Supply (GK220S_-15W Series) HenLv, AC-DC Switching Power Supply (GK220S – 150W Series) HDMI to HDMI Flat Cable 3M – 4K Ultra HD High-Speed HDMI 2.0 Cable with Gold-Plated Connectors(BM) GY-9960-3.3 APDS-9960 RGB Infrared Gesture Sensor(BM) G90 Micro Servo Motor with 1 Motor, 3 Servo Arms and 3 Screws for Robot(BX2) ESP8266 GPIO Expansion Board With Screw Terminal Adapter For Easy Prototyping & Permanent IoT Projects(BF) ESD tweezers, precision anti-static stainless steel tweezers, electronic model DG308 KF120 2.54mm 4P PCB Terminal Block(BT) DC Brush Solar Submersible Water Pump (24V_132Feet_1000LPH) CD4017BE CMOS Counter(BQ) BC517 NPN Darlington Transistor High Gain Amplifier All-in-One Modular Crimping Tool – RJ45 / RJ12 / RJ11, Cat5E / Cat6 Compatible(BR) AC 6V 9V 12V 15V 24V Output Voltage 2W EI Copper Core Input 220V 50Hz~60Hz Single Voltage 2 Line Copper Power Transformer(BM) 80 mm Length, 50 A PVC-Insulated Safety Test / Battery Clip (Crocodile / Alligator Clip)BX 8-Piece Combination Spanner Set HT-CS08 – Metric Open & Ring Wrenches for General Use(AWY) 5V 2.4A Type-C / Micro / Lightning USB Power Bank 18650 Charger Board – DIY Power Bank Module 5A Single-Phase AC Current Sensor Module – Analog Output Current Measurement(BQ) 27W AC/DC Power Adapter – 9V 3A High-Power Supply (Plug-In Adapter)BR 20W Hot Melt Glue Gun(BT) 1W Carbon film resistors(BQ) 12V Car Audio USB TF FM Radio Module Wireless Bluetooth 5.0 Car MP3 Decoder(BK) 12V 50W Philips Bi-Pin Halogen Bulb (GY6.35)  C1815 NPN Transistor Audio Low Noise Amplifier(BM) ESP32 2.8 Inch TFT Touchscreen LCD Display 240×320 ILI9341 ESP-WROOM-32 WiFi Bluetooth( DC 9V Battery Button Power Plug with 5.5×2.1mm DC Male Connector for Arduino Mega 2560 & UNO(BW) 2.54mm DIP IC Socket 6/8/14/16/18/20/24/28 Pins Through-Hole Sockets for PCB & Prototyping(BL) Turbidity Sensor Module for Arduino – Water Quality & NTU Detection Sensor(BW) Gravity Analog TDS Sensor Meter for Arduino – Water Quality Monitoring Sensor Module(BW) Isolated AC-DC Switching Power Supply Module 3.5W/24W 5V, 12V & 24V Converter (85–265V AC Input)(BW) 220V 2000W SCR AC Voltage Regulator Dimmer Motor Speed Controller Temperature Control Module(BL)