Feature Description
Introduction
Introducing the R21, an advanced industrial general-purpose solution designed to enhance the capabilities of the Raspberry Pi Zero. By seamlessly integrating the Pi Zero and its 40-pin GPIO header onto the carrier board, the R21 provides a robust foundation for expanded functionality.
Unlocking new possibilities, the R21 features a PCIe-based M.2 Key M slot, offering reliable and high-speed solid-state storage to elevate the performance of the Pi Zero. Powering the R21 is a breeze, thanks to compatibility with a 6-15V DC power supply equipped with a barrel jack connector, or the optional Power over Ethernet (PoE) PD.
The R21 redirects the Pi Zero's USB ports, which should not be used independently. These ports are directly linked to the board, serving different functions. Additionally, specific pins from the 40-pin header are allocated for proprietary functions. This rerouting is achieved through solder connection to the Pi Zero test points.
Connectors and features
| Description | R20.1 | R21 | Note |
|---|---|---|---|
Size | 125mm x 62.5mm | 125mm x 62.5mm |
|
Compatible Modules | Raspberry Pi Zero v1.3 | Raspberry Pi Zero v1.3 |
|
Power Input | 12V nominal (6-15V), 5.5/2.5mm barrel jack | 12V nominal (6-15V), 5.5/2.5mm barrel jack |
|
Power Protection | overvolt protection, reverse voltage protection | overvolt protection, reverse voltage protection |
|
USB | USB 2.0:
| USB 2.0:
| |
Micro SD Card | 1x on Raspberry PI | 1x on Raspberry PI |
|
HDMI | 1x mini HDMI on Raspberry PI | 1x mini HDMI on Raspberry PI |
|
Ethernet / PoE | yes: Gigabit RJ45 / 10 watt | yes: Gigabit RJ45 / 10 watt | PoE Class 3 |
M.2 Key M (NVMe) | 2242, 1x NVME (PCIe x2) | 2242, 1x NVME (PCIe x2) |
|
M.2 Key B | 3042, for LTE/5G (with dual Nano SIM) | 3042, for LTE/5G (with dual Nano SIM) |
|
GPIO | 40 pin | 40 pin | |
Service Port | yes: RJ45 connector | no |
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