PJRC · NXP i.MX RT
Teensy 4.0
The raw-power microcontroller: a 600 MHz Cortex-M7 that outruns many boards with an operating system, in a breadboard-friendly package.
No wireless3.3 V logicBreadboard
Typical price
$24
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Specifications
| Maker | PJRC |
|---|---|
| Chip | NXP i.MX RT1062 |
| CPU | Arm Cortex-M7 |
| Clock speed | 600 MHz |
| Wi-Fi | None |
| Bluetooth | None |
| Zigbee / Thread radio | No |
| GPIO pins | 40 usable |
| ADC | 14 channels, 12-bit |
| DAC | None |
| Flash | 2 MB |
| RAM | 1 MB |
| Logic level | 3.3 V |
| Power input | 5V USB / VIN |
| Deep sleep (typ.) | ~15 mA |
| Active current (typ.) | ~100 mA |
| Form factor | Breadboard |
| USB | Micro-USB (native, 480 Mb/s) |
| Programming | Arduino C++ (Teensyduino), CircuitPython |
| Released | 2019 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- 600 MHz Cortex-M7 — easily the fastest on this list
- Superb audio library and DSP
- Great Arduino-compatible tooling and forum support
Cons
- No wireless and no true low-power sleep
- 3.3 V only, pins are not 5 V tolerant
- Overkill and thirsty for simple jobs
Best use cases
- 01Audio synthesis and effects
- 02Fast sensors and LED matrices
- 03Real-time control
- 04MIDI and USB devices
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