

The Terminal Block Breakout Board Module for Teensy 4.1, DIN Rail Mount Version by CZH-LABS is a robust and versatile accessory designed to simplify connections to the Teensy 4.1 microcontroller. This breakout board provides a convenient way to access all the pins of the Teensy 4.1 via terminal blocks, making it ideal for industrial, prototyping, and educational applications. The DIN rail mount design ensures secure installation in control panels or enclosures.








The breakout board provides access to all Teensy 4.1 pins via terminal blocks. Below is the pin mapping:
| Terminal Block Pin | Teensy 4.1 Pin | Description |
|---|---|---|
| 1 | VIN | Input voltage (external power) |
| 2 | GND | Ground |
| 3 | 3.3V | 3.3V output |
| 4-33 | Digital Pins 0-29 | General-purpose I/O pins |
| 34-41 | Analog Pins A0-A7 | Analog input pins |
| 42 | USB Host Power | USB host power output |
| 43 | USB Host GND | USB host ground |
| 44-45 | I2C SDA, SCL | I2C communication pins |
| 46-47 | SPI MOSI, MISO | SPI communication pins |
| 48 | SPI SCK | SPI clock pin |
| 49-50 | CAN RX, TX | CAN bus communication pins |
Note: Ensure proper wiring to avoid short circuits or damage to the Teensy 4.1.
The following example demonstrates how to use the breakout board with a Teensy 4.1 to blink an LED connected to a digital pin:
// Example: Blink an LED connected to Digital Pin 13 on Teensy 4.1
// Ensure the LED's anode is connected to Pin 13 and cathode to GND.
#define LED_PIN 13 // Define the pin connected to the LED
void setup() {
pinMode(LED_PIN, OUTPUT); // Set the LED pin as an output
}
void loop() {
digitalWrite(LED_PIN, HIGH); // Turn the LED on
delay(1000); // Wait for 1 second
digitalWrite(LED_PIN, LOW); // Turn the LED off
delay(1000); // Wait for 1 second
}
Tip: Use jumper wires to connect the LED to the terminal block pins for easy prototyping.
Teensy 4.1 Not Powering On
No Response from Connected Devices
Loose Connections in Terminal Blocks
Interference or Noise in Signals
By following this documentation, users can effectively utilize the Terminal Block Breakout Board Module for Teensy 4.1, DIN Rail Mount Version in their projects, ensuring reliable and organized connections.