BATC Forum

The new RPi4 CM was released today with some impressive specs. Given a custom board or even the standard breakout card this may be a great basis for the Portsdown, Ryde, and Langstone.. I'm going to get hold of one to play with..
Specification
Broadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
H.265 (HEVC) (up to 4Kp60 decode), H.264 (up to 1080p60 decode, 1080p30 encode)
OpenGL ES 3.0 graphics
Options for 1GB, 2GB, 4GB or 8GB LPDDR4-3200 SDRAM (depending on variant)
Options for 0GB ("Lite"), 8GB, 16GB or 32GB eMMC Flash memory (depending on variant)
Option for fully certified radio module:
2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless;
Bluetooth 5.0, BLE;
On-board electronic switch to select either external or PCB trace antenna
https://www.raspberrypi.org/products/co ... -cm4108032

Explains why prices of the PI4 are dropping. The CM is a good option for embedded systems. Good time to pick up a bargain. Incidentally I have a PI3 CM in my LimeNetMicro. I don't know if there is an upgrade route for it.

Mike

The standard breakout board..

Specification
External power connector (+12V, +5V)
2 x full-size HDMI 2.0 connectors
2 x USB 2.0 connectors, with header for two additional connectors
Gigabit Ethernet RJ45 with PoE support
Micro USB socket for updating Compute Module 4
MicroSD card socket for Compute Module 4 Lite (without eMMC) variants
PCIe Gen 2 x1 socket
Standard fan connector
2 x MIPI DSI display FPC connectors (22-pin 0.5 mm pitch cable)
2 x MIPI CSI-2 camera FPC connectors (22-pin 0.5 mm pitch cable)
Standard Raspberry Pi HAT connectors
Real-time clock with battery socket and ability to wake Compute Module 4
Various jumpers to disable specific features, e.g. wireless connectivity, EEPROM writing
https://www.raspberrypi.org/products/co ... -io-board/

g0mjw wrote: ↑

Mon Oct 19, 2020 11:23 am

I have a PI3 CM in my LimeNetMicro. I don't know if there is an upgrade route for it.

Having moved from a dimm slot to two mezzanines I don't know but I suspect that someone will try to find a solution.

nice video to watch

https://youtu.be/yiHgmNBOzkc

73 John G7JTT