raspberry-pi-pico-h

Important Note

This entire repo was AI created - including all of the data within. The intent was to A) help me with my personal electronics inventory; and B) see how I could use AI to make that process a bit easier. DO NOT TRUST!

Raspberry Pi Pico H - Pico with Headers Soldered

Details

• Location: Cabinet-1, Bin 32
• Category: Microcontroller Boards
• Type: RP2040 Development Board with Pre-Soldered Headers (Pico Form Factor)
• Microcontroller: RP2040 (Dual ARM Cortex-M0+ @ 133MHz)
• Brand: Raspberry Pi Foundation
• Part Number: 5525
• Quantity: 1
• Product URL: https://www.adafruit.com/product/5525

Description

The Raspberry Pi Pico H is identical to the classic Pico but comes with pre-soldered headers and a new 3-pin debug connector. This makes it perfect for breadboard prototyping and development without requiring any soldering. The RP2040 microcontroller provides powerful dual-core performance at an affordable price.

Specifications

• Microcontroller: RP2040 dual-core ARM Cortex-M0+ @ 133MHz
• Memory: 264KB on-chip SRAM, 2MB on-board QSPI Flash
• GPIO Pins: 26 total (25 user-accessible + 1 LED)
• ADC: 3x 12-bit analog inputs (4th ADC used internally)
• PWM: 16 PWM channels
• Peripherals: 2x UART, 2x SPI, 2x I2C, USB 1.1 controller
• PIO: 2 blocks with 4 state machines each (8 total)
• Power: 1.8-5.5V input via USB or VSYS pin
• Logic Level: 3.3V (not 5V tolerant)

Dimensions

• Board Size: 21mm x 51mm (0.83” x 2.0”)
• Weight: ~3g
• Form Factor: Standard Pico compatible

Image

Features

• Pre-Soldered Headers: Ready for breadboard use without soldering
• 3-Pin Debug Connector: JST-SH connector for advanced debugging
• Dual-Core Performance: Two ARM Cortex-M0+ cores for multitasking
• PIO State Machines: Create custom hardware peripherals in software
• UF2 Bootloader: Drag-and-drop programming via USB mass storage
• Single Green LED: Connected to GPIO 25 for status indication
• BOOTSEL Button: Enter bootloader mode for firmware updates
• Breadboard Friendly: Standard 0.1” (2.54mm) pin spacing
• Low Power: Various power-saving modes available

Programming Support

• CircuitPython: Full support with extensive library ecosystem
• MicroPython: Official Raspberry Pi Foundation support
• Arduino IDE: Philhower Arduino core recommended
• C/C++ SDK: Official Raspberry Pi Pico SDK
• UF2 Bootloader: Simple drag-and-drop firmware installation

PIO (Programmable I/O) Capabilities

• Custom hardware peripherals created in software
• Perfect timing for protocols like NeoPixels, I2S, VGA
• 8 state machines total (2 blocks × 4 machines each)
• Can handle complex serial protocols without CPU intervention
• Runtime programmable in MicroPython and CircuitPython

Power Options

• USB Power: 5V via micro-USB connector
• External Power: 1.8-5.5V via VSYS pin
• 3.3V Output: 3.3V regulator provides up to 300mA
• Low Power Modes: SLEEP and DORMANT modes for battery operation

Debug Features

• 3-Pin Debug Connector: JST-SH connector for SWD debugging
• SWD Pins: SWCLK and SWDIO accessible via debug connector
• Reset Pin: Hardware reset capability
• Serial Debug: UART output for debugging

Tags

microcontroller, rp2040, pico, raspberry-pi, headers-soldered, debug-connector, circuitpython, micropython, arduino, pio, dual-core

Pinout Diagram

                    Raspberry Pi Pico H Pinout

                    +-----+
         +----------| USB |----------+
         |          +-----+          |
         | [ ]GP0/TX0              VBUS[ ] |
         | [ ]GP1/RX0              VSYS[ ] |
         | [ ]GND                   GND[ ] |
         | [ ]GP2                3V3_EN[ ] |
         | [ ]GP3                   3V3[ ] |
         | [ ]GP4               ADC_REF[ ] |
         | [ ]GP5                  GP28[ ] |
         | [ ]GND                  GND[ ] |
         | [ ]GP6                  GP27[ ] |
         | [ ]GP7                  GP26[ ] |
         | [ ]GP8                  RUN[ ] |
         | [ ]GP9                  GP22[ ] |
         | [ ]GND                  GND[ ] |
         | [ ]GP10                 GP21[ ] |
         | [ ]GP11                 GP20[ ] |
         | [ ]GP12                 GP19[ ] |
         | [ ]GP13                 GP18[ ] |
         | [ ]GND                  GND[ ] |
         | [ ]GP14                 GP17[ ] |
         | [ ]GP15                 GP16[ ] |
         |                               |
         |    [DEBUG]  [BOOTSEL]  [LED]  |
         +-------------------------------+

Debug Connector (3-pin JST-SH):
SWCLK | SWDIO | GND

Basic Wiring Examples

LED Blink Circuit

Pico GP25 → Built-in LED (no external wiring needed)
OR
Pico GP15 → LED Anode (long leg)
LED Cathode (short leg) → 220Ω Resistor → Pico GND

Button Input Circuit

Pico 3V3 → 10kΩ Pull-up Resistor → Pico GP2
Pico GP2 → Button → Pico GND

Code: digitalRead(2) returns HIGH when not pressed, LOW when pressed

I2C Device Connection (Default I2C0)

Pico 3V3 → Device VCC
Pico GND → Device GND
Pico GP4 (SDA) → Device SDA
Pico GP5 (SCL) → Device SCL
Add 4.7kΩ pull-up resistors on SDA and SCL lines

SPI Device Connection (Default SPI0)

Pico 3V3 → Device VCC
Pico GND → Device GND
Pico GP18 (SCK) → Device SCK
Pico GP16 (MISO) → Device MISO
Pico GP19 (MOSI) → Device MOSI
Pico GP17 (CS) → Device CS/SS

Analog Reading

Sensor Output → Pico GP26 (ADC0), GP27 (ADC1), or GP28 (ADC2)
Code: analogRead(A0) returns 0-65535 (0-3.3V)

Programming Setup Guide

CircuitPython Setup

1. Download CircuitPython UF2 from circuitpython.org
2. Hold BOOTSEL button while connecting USB
3. Drag UF2 file to RPI-RP2 drive
4. Board reboots as CIRCUITPY drive
5. Edit code.py to program

Arduino IDE Setup

1. Install Arduino IDE 2.0+
2. Add RP2040 board package URL in preferences
3. Install “Raspberry Pi Pico/RP2040” boards
4. Select “Raspberry Pi Pico” from Tools → Board
5. Hold BOOTSEL while connecting for first upload

MicroPython Setup

1. Download MicroPython UF2 from micropython.org
2. Hold BOOTSEL button while connecting USB
3. Drag UF2 file to RPI-RP2 drive
4. Use Thonny IDE or terminal for programming

Programming Examples

CircuitPython LED Blink

import board
import digitalio
import time
 
led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT
 
while True:
    led.value = True
    time.sleep(1)
    led.value = False
    time.sleep(1)

Arduino LED Blink

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);  // GP25
}
 
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000);
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000);
}

Notes

The Pico H is perfect for breadboard prototyping since the headers are already soldered. The 3-pin debug connector provides professional debugging capabilities. The RP2040’s PIO system is unique and powerful for creating custom peripherals. Important: Not 5V tolerant - all GPIO pins are 3.3V logic only. The UF2 bootloader makes programming incredibly simple - just hold BOOTSEL while plugging in USB to enter bootloader mode.