TIP31C POWER TRANSISTORS（3A，100V，40W）NPN

Adafruit MicroSD Card Breakout Board+ [ADA254]

SHIELD-EKG-EMG-PRO Cable for Gel ECG Electrodes

STMicroelectronics UA741CN Operational Amplifier (Pack of 10)

MakerDoIt 4pcs Micro Arduino Servo Motor SG90, for Robot Arm/Hand/ Walking/Servo Door Lock, Control with Arduino, by

(1PCS) INA121P IC OPAMP INSTR 600KHZ SGL 8DIP 121 INA121

Elegoo EL-KIT-003 UNO Project Super Starter Kit with Tutorial for Arduino

GY-521 MPU-6050 MPU6050 3 Axis Accelerometer Gyroscope Module 6 DOF 6-axis Accelerometer Gyroscope Sensor Module 16 Bit AD Converter Data Output IIC I2C

DIYmall Airplane 9g SG90 Mini Servo with Accessories for Arduino 450 RC Helicopter Airplane Car Boat (Pack of 4pcs)

TIP42C TIP42 PNP Complementary Power Transistor TO-220 10 Pack

Chanzon Fast Switching/Schottky / Rectifier Diode Assorted Kit (200pcs 14 Values 1N4001 1N4004 1N4007 RL207 1N5404 1N5406 1N5408 UF4007 FR107 FR207 1N5817 1N5819 1N5822 1N4148) Electronic Assortment