74HC74D (Dual D-type flip-flop with set and reset-positive edge-trigger) SMD NPN ENCODER there are three digital pins:

there are three digital pins: Clock

It has a handy JST 2PH input cable to add audio to your displays and other projects (this connector is part of the JST-PH series which is ~2

TP4056 module is a linear charger for lithium-ion and LIPO batteries

OV7725 image sensor datasheet

Brass lead screw Nut x1

74HC74D (Dual D-type flip-flop with set and reset-positive edge-trigger) SMD NPN ENCODER there are three digital pins:Flip Flop 2 Element D Type 1 Bit Positive Edge 14 SOIC (0. 154", 3. 90mm Width) Features: Function: Set(Preset) and Reset. Type: D Type. Output Type: 1. Number of Bits per Element: Differential. Number of Elements: 2. Number of Bits per Element: 1. Clock Frequency: 60MHz. Trigger Type: Positive Edge. Current Output High, Low: 5. 2mA, 5. 2mA. Voltage Supply: 2V ~ 6V. Mounting Type: Surface Mount. Package Case: 14 SOIC (0. 154", 3. 90mm Width). 74HC245