LoRa/BLE Modules
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
16
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BLE Measured Peak Current Waveforms during Connection
The following figures illustrate BLE current waveforms observed as the RM1xx module performs during
connection functionality.
TBD
: Update plot
Figure 3: Typical peak current consumption profile with
TBD
conditions
Note: In the above picture, UART is ON. X-axis time (1 mS per square), Y-axis current (2 mA per square).
Peripheral Block Current Consumption
The values below are calculated for a typical operating voltage of 3 V.
Table 10: UART Power Consumption
Parameter
Min
Typ
Max
Unit
UART Run current @ Max Baud Rate
230
uA
UART Run current @ 115200 bps
220
uA
UART Run current @ 1200 bps
210
uA
UART Baud rate
1200
460800
bps
Table 11: SPI Power Consumption
Parameter
Min
Typ
Max
Unit
SPI Master Run current @ 125 kbps
180
uA
SPI Master Run current @ 4 Mbps
200
uA
SPI bit rate
0.125
4
Mbps
Table 12: I2C Power Consumption
Parameter
Min
Typ
Max
Unit
I2C Run current @ 100 kbps
380
uA
I2C Run current @ 400 kbps
400
uA
I2C Bit rate
100
400
kbps
