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4-Channel 5V Relay Module (Active Low, Optocoupled)
In stock
| Trigger Voltage |
5V |
|---|---|
| Channels |
4 |
| Trigger Type |
Active Low (Optocoupler Isolated) |
| Max Switching Current |
10A @ 250VAC / 10A @ 30VDC |
| Control Interface |
TTL/Microcontroller Compatible |
| Dimensions |
77mm x 55mm x 19mm |
Solderless Breadboard Jumper Wire Kit (140 Pieces, U-Shape)
In stock
| Material |
Tinned Copper Wire, 22AWG |
|---|---|
| Pin Count |
140 Pieces |
| Wire Lengths |
Assorted pre-formed lengths |
| Compatible With |
2.54mm Pitch Breadboards |
| Storage |
Plastic Organizer Case |
Rain Drop Detection Sensor Module (Detection Plate + Comparator Board)
In stock
| Supply Voltage |
5V |
|---|---|
| Output Type |
Digital (D0) and Analog (A0) |
| Detection Range |
Rain / Water Droplets on PCB Plate |
| Response Time |
Under 1 Second |
| Operating Temperature |
-10°C to +65°C |
| Sensitivity Adjustment |
Onboard Potentiometer |
2S 7.4V 8A Lithium Battery BMS Protection Module (Balanced)
In stock
| Cell Configuration |
2S (2 Cells in Series) |
|---|---|
| Nominal Voltage |
7.4V |
| Max Continuous Current |
8A |
| Overcharge Protection |
4.25V ±0.05V per cell |
| Over-discharge Protection |
2.5V ±0.1V per cell |
| Balance Function |
Yes (Balanced Version) |
| Operating Temperature |
-40°C to +85°C |
MQ-3 Alcohol Gas Sensor Module
In stock
| Supply Voltage |
5V |
|---|---|
| Output Type |
Analog voltage signal |
| Detection Range |
Typically 10 to 1000 ppm ethanol |
| Response Time |
Generally within a few minutes |
| Operating Temperature |
-10°C to +50°C |
| Sensitivity Adjustment |
Includes a potentiometer to adjust sensitivity for different application needs |
Arduino Uno R3
In stock
| Color |
Blue |
|---|---|
| Dimensions |
68.6 mm x 53.4 mm |
| Microcontroller |
ATmega328P |
| Operating Voltage |
5V |
| Nput Voltage (limit) |
6-20V |
| Digital I/O Pins |
14 (6 PWM outputs) |
| Analog Input Pins |
6 |
| Flash Memory |
32 KB (ATmega328P) of which 0.5 KB used by bootloader |
| SRAM |
2 KB (ATmega328P) |
| EEPROM |
1 KB (ATmega328P) |
| Clock Speed |
16 MHz |