TM1650 Four-Digit Digital Tube
$4.06 – $4.71Price range: $4.06 through $4.711pcs
I2C-controlled 7-segment display, 3.3V/5V compatible, ideal for Arduino projects like timers, speedometers & voltage monitors.
| Dimensions | 81.5 × 26.0 mm |
|---|---|
| Brand |
easyelecmodule |
Product Introduction
The TM1650 4-digit nixie tube module is based on the TM1650 chip, compatible with 0.8-inch common-cathode nixie tubes, with a wide supply voltage of 3.3V-5V. Adopting a pseudo-I2C two-wire communication, it only needs two wires for control, supporting 7/8-segment display and 8-level brightness adjustment. Built-in display memory eliminates manual scanning, and it integrates matrix key functions. With a simple circuit and stable driving, it’s a cost-effective numerical display solution for Arduino DIY, home appliance panels, industrial instruments, etc.
Module Features
1.2-wire serial communication (CLK/DAT), easy to drive with Arduino.
2.Supports 4-digit 7/8-segment display.
3.7×4 key scan + 8-level brightness adjustment.
4.3.3V-5V wide voltage, built-in reset/oscillation circuit.
5.High current drive (segment 25mA + bit 150mA), stable anti-interference.
Function of TM1650 pins
| Pin | definition |
|---|---|
| VCC | Positive pole |
| GND | Power ground |
| SCL | Serial clock signal pin |
| SDA | Serial data transmission pin |
Matters Need To Attention
- Connection of the digital tube: Ensure that the common cathode is connected to the negative terminal of the power supply, and each segment is connected correctly.
- Driving current: The current requirement of the digital tube should be less than the driving capacity of TM1650 to avoid overload and damage.
Application Scenarios
It is widely used in household appliances, such as microwave ovens and air conditioners, for time display; in medical devices, such as blood pressure monitors and thermometers, for display of time and temperature information; in industrial instruments, for displaying various measurement data; and in smart terminals, such as smart watches and calculators, for display interfaces.
Related Information
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .

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