Integration Manual

User’s Guide
Page 2 of 4
1 Overview
M840-QI is BLE5 module using Nordic nRF52840 SoC.
1.1 Block diagram
The following is a block diagram of the M840-QI module
nRF52840
AFE
Vin
ADC
Digital
IOs
Figure 1: M840-QI Block Diagram
1.2 Features
• nRF52840-QIAA chip
• Integrated PCB antenna
• On board 32MHz crystal
• Input voltage: 1.7v-3.6v (Recommended operating conditions)
• 16x11.7x2.2mm
• Components on one side