Arduino Pro Mini 5V 16 MHz
by Arduino / clone
SKU: PSA-CMP-PROMINI
No reviews yetTypical India street price
₹120–₹280
Bare 328P for embedding — needs a USB-TTL dongle to program.
Interface: GPIO, UART, I2C, SPI, analog
Use Arduino IDE sketches or USB Lab workflows depending on the kit.
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Concept
UNO brain without USB-serial, so the board stays tiny and cheap.
A little theory
Same ATmega328P. DTR pulse from FTDI resets via 0.1 µF cap to upload. In the classroom, treat Arduino Pro Mini 5V 16 MHz as a intermediate part using GPIO, UART, I2C, SPI, analog. Typical India street price is about ₹120–₹280. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Wire FTDI: DTR, RX, TX, VCC, GND, CTS. Select Pro Mini in IDE.
Classroom & project use
- Permanent installs
- Low-cost class sets
- Microcontrollers classroom demo
Buying in India
Precautions
- Swap RX/TX is the #1 fail
- Do not feed 12 V
Specifications
| MCU | ATmega328P |
| USB | None (FTDI) |
| Category | Microcontrollers |
| Difficulty | Intermediate |
| Voltage | 5V (FTDI) |
| Interface | GPIO, UART, I2C, SPI, analog |
Pinout
VCC | GND | SCL | SDA (confirm address with I2C scanner)
