8devices CM4 User Manual
Lima
Product brief
Lima has 802.11N 2x2 radio supporting up to 300 Mbps data-rate and
comes in two versions: commercial or industrial temperature
Lima is a QCA 4531 chipset based module with
a 650 MHz CPU and 802.11N 2x2 (MIMO) radio.
Module is available in two temperature ranges:
commercial (Lima-C) and industrial (Lima-I).
Lima is a surface mountable, dual-sided, Wi-Fi
enabled Linux module for the (IoE) internet of
everything applications.
Faster CPU, 300 Mbps data-rate, low power
consumption, larger memmory options (up to
128 MB RAM and up to 64 MB Flash) and a
development kit with more interfaces (e.g. PCIe)
are the key dierentiators from Carambola 2
module.
OpenWRT linux distribution source code is
available on GitHub https://github.com/8devices
and is supported by our growing community on
http://www.8devices.com/community forum.
Quick specs
• 802.11 b/g/n, 2.4 GHz, 2x2 MIMO, 300 Mbps
data rate.
• U.FL connectors or external pin for external
an tenna
• 16 MB FLASH, 64 MB DDR2 RAM
• Linux friendly , OpenWRT ash image and source
code are available for download on
www.8devices.com/wiki_lima
• CPU – QCA 4531, 650 MHz clock speed
• Small form factor (25 by 35 mm)
• Surface mountable, dual-side design
• Industrial and commercial temperature range
models
• Available interfaces - USB 2.0 host, serial port,
2 x Ethernet, i2C, UART, PCIe, GPIO
Module dimensions
Block diagram
Development kit
1
1
6 6
5
5
234
7
1 - 2 x 100 Base-T Ethernet ports
2 - Mini USB Type-A socket (console + power)
3 - USB Type-A socket
4 - Buttons (reset and user - GPIO connected)
5 - Two integrated antennas
6- 2.45 mm pitch prototyping area holes
7 - PCIe socket
2 Lima Product brief
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