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For those who want the TL;DR; What has changed: • Double the RAM (now 1GB, up from 512). • Now uses the BCM2837 processor • 1MM thicker • New 'lite' versio

For those who want the TL;DR; What has changed: • Double the RAM (now 1GB, up from 512). • Now uses the BCM2837 processor • 1MM thicker • New 'lite' version which will allow you to use your own SD card (no more having to fit everything within the 4GM eMMC) • Pulls more current and will get hotter (just like the RPi3) • Version 1 is now being obsoleted What has stayed the same: • 1 for 1 pin compatible with the compute module V1 • Same 4GB eMMC for the non lite version Source: http://raspberry.piaustralia.com.au/ http://raspberry.piaustralia.com.au/

xuhu 10y ago
From the article: while the CM1 (which isn’t being obsoleted)
Narishma 10y ago
> Version 1 is now being obsoleted No, it's not. They specifically say in the article that they will continue producing and supporting it.
rbanffy 10y ago
One thing I didn't see in the connector is ethernet. I've been playing with the idea of building a small cluster and having all machines neatly stacked in a backplane that could act as an ethernet switch (maybe a KVM for HDMI/USB) instead of screwed together with board spacers and cables running around the setup would be awesome.
- nine_k 10y ago
  RPi2 had an Ethernet adapter internally connected via USB2. Probably this is not what you want for a cluster anyway. Many competitively-priced ARM boards with proper Ethernet exist.
  - rbanffy 10y ago
    Yes, but having a proper ethernet on the edge connector would avoid the need for an RJ-11 and allow integrating a switch on the board hosting the CMs and prevent the usual mess with cables forming around the boards. At least, that's what I'd hope.
    - Sanddancer 10y ago
      The Pi has a single USB OTG interface, and no onboard ethernet. On the regular Pis, that's sent to an on-board hub, which fans it out to the USB sockets and the USB-Ethernet chips. The Compute Module, on the other hand, doesn't include a hub and Ethernet chip, because not every application will need it, and probably more importantly, it can be set to boot off code it receives from a USB host. This is useful in debugging because you can start working on things with a very minimal number of connections, and also so you can rapidly reprogram it without having to reflash for every boot. In general, the CM has a lot of support for I/O that is just not feasible with the package the regular PI uses. Things like the extra camera and display ports can be useful for computer vision packages, but would make routing on the normal board real difficult. By minimizing the extent of the breakout, they really do make the chip able to be considered in a lot more use cases.
- khedoros1 10y ago
  The BCM283x chips don't have an onboard ethernet controller at all. You'd be expected to go through the USB interface for that.
  - rbanffy 10y ago
    I wonder if there are similar SoCs with on-board Ethernet. Broadcom's website is incredibly opaque.

xuhu 10y ago

From the article: while the CM1 (which isn’t being obsoleted)

Narishma 10y ago

> Version 1 is now being obsoleted No, it's not. They specifically say in the article that they will continue producing and supporting it.

rbanffy 10y ago

One thing I didn't see in the connector is ethernet. I've been playing with the idea of building a small cluster and having all machines neatly stacked in a backplane that could act as an ethernet switch (maybe a KVM for HDMI/USB) instead of screwed together with board spacers and cables running around the setup would be awesome.

nine_k 10y ago
RPi2 had an Ethernet adapter internally connected via USB2. Probably this is not what you want for a cluster anyway. Many competitively-priced ARM boards with proper Ethernet exist.
- rbanffy 10y ago
  Yes, but having a proper ethernet on the edge connector would avoid the need for an RJ-11 and allow integrating a switch on the board hosting the CMs and prevent the usual mess with cables forming around the boards. At least, that's what I'd hope.
  - Sanddancer 10y ago
    The Pi has a single USB OTG interface, and no onboard ethernet. On the regular Pis, that's sent to an on-board hub, which fans it out to the USB sockets and the USB-Ethernet chips. The Compute Module, on the other hand, doesn't include a hub and Ethernet chip, because not every application will need it, and probably more importantly, it can be set to boot off code it receives from a USB host. This is useful in debugging because you can start working on things with a very minimal number of connections, and also so you can rapidly reprogram it without having to reflash for every boot. In general, the CM has a lot of support for I/O that is just not feasible with the package the regular PI uses. Things like the extra camera and display ports can be useful for computer vision packages, but would make routing on the normal board real difficult. By minimizing the extent of the breakout, they really do make the chip able to be considered in a lot more use cases.
khedoros1 10y ago
The BCM283x chips don't have an onboard ethernet controller at all. You'd be expected to go through the USB interface for that.
- rbanffy 10y ago
  I wonder if there are similar SoCs with on-board Ethernet. Broadcom's website is incredibly opaque.