Last Updated on 13 February 2021 by Suffocation
Boards
| Name | Raspberry Pi 1.0/A+/B+ | Raspberry Pi 2.0/B | Raspberry Pi 3.0 | Raspberry Pi Zero | Arduino Nano 33 BLE |
|---|---|---|---|---|---|
| Number/CPU | ARM1176JZF-S | ARM Cortex-A7 / ARM Cortex-A53 | ARM Cortex-A53 | ARM1176JZF-S | 1 / 64 MHz Arm® Cortex-M4F (with FPU) |
| Clock speed (MHz) | 700 | 900 | 1200/1400 | 1000 | 64 |
| Kernel | 1 | 4 | 4 | 1 | 1 |
| Digital IOs / Pins | 17 – 26 | 26 | 26 | 26 | 14 |
| Analog inputs | – | – | – | – | 8 |
| Interrupt Pins | ? | ? | ? | ? | 14 |
| Pulse Width Modulation | 2 | 2 | 2 | 2 | 14 |
| SPI | 1 | 1 | 1 | 1 | 1 |
| Flash memory | micro SD card | micro SD card | micro SD card | micro SD card | 1 megabyte |
| RAM (KB) | 256/512 | 1024 | 1024 | 512 | 256KB |
| EEPROM (KB) | – | – | – | – | – |
| WiFi | – | – | 2.4 GHz 802.11 b/g/n | 2.4 GHz, 802.11 b/g/n | – |
| Encryption | – | – | WEB / WPA2 / TKIP / AES | WEB / WPA2 / TKIP / AES | – |
| Bluetooth | – | – | 4.1/4.2 | 4.1 | NINA-B306 Module Bluetooth® Low Energy 5.0 Module Bluetooth® 5 Multiprotocol / Zigbee |
| UART | 1 | 1 | 1 | 1 | 1 |
| I2C | 1 | 1 | 1 | 1 | 1 |
| Ethernet | 10/100 MBit | 10/100 MBit | 10/100/100 Mbit | – | – |
| Video | Normal | Normal | Normal | Micro | – |
| Sound | 3.5mm jack stereo | 3.5mm jack stereo | 3.5mm jack stereo | HDMI digital | – |
| Miscellaneous | – | – | – | – | LSM9DS1 (9-axis IMU) MPM3610 DC regulator NFC-A tag Nina B306 |
| USB | 1-2 | 4 | – | – | 1 Micro |
| Operating voltage [V] | 5 | 5 | 5 | 5 | 3,3 |
| Input voltage | 5 | 5 | 5 | 5 | 21 |
| Current (mA) / Standby (mA) | 80-160 | 200-450 | 260-730 | 80-120 | 30 |
| Size L x W x H | 93 x 63,5 x 17 | 93 x 63,5 x 20 | 93 x 63,5 x 20 | 65 x 31 x 5 | 43,16 x 17,7 |
| Weight [g] | 31 | 40 | 40 | 9 | 5 |
Projects
Useful
Querying the Raspberry Pi version on Raspbian
The command `cat /sys/firmware/devicetree/base/model` is a Linux command that displays the hardware model of the system. This command reads information from the device tree, which is a data structure used by the Linux kernel to describe hardware.
The output of this command will vary depending on the specific hardware the Linux system is running on. Here are a few examples of what the output might look like:
* **Raspberry Pi:**
```
Raspberry Pi 4 Model B Rev 1.2
```
or
```
Raspberry Pi 3 Model B Plus Rev 1.3
```
* **Virtual Machine (e.g., VMware, VirtualBox):**
```
VMware Virtual Platform
```
or
```
Oracle VM VirtualBox
```
* **Server/Desktop Hardware:**
```
Aptio UEFI SP5100 (Rev 1.00)
```
or
```
Supermicro H12DSi-NT6
```
* **Embedded Systems:**
The output will be specific to the System on a Chip (SoC) and board manufacturer. For example:
```
Rockchip RK3399
```
or
```
Qualcomm Technologies, Inc. APQ8096
```
**In summary, the command `cat /sys/firmware/devicetree/base/model` is used to identify the specific make and model of the computer's hardware that the Linux operating system is running on.**Source: https://www.elektronik-kompendium.de/sites/raspberry-pi/2006071.htm