Key facts
- Brand
- Texas Instruments
- Model
- CC2541
- Category
- microcontrollers
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-13
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Texas Instruments CC2541 Bluetooth Low Energy Power Consumption Measurement Guide
This document provides a guide for measuring power consumption and estimating battery life for devices running the Bluetooth Low Energy (BLE) stack on the Texas Instruments CC2541 microcontroller. It details the necessary hardware modifications, such as adding a shunt resistor and removing specific capacitors, to ensure accurate current measurements using an oscilloscope. The guide also outlines required software modifications to the SimpleBLEPeripheral project to minimize unnecessary power draw during testing.
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How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What specific hardware modifications are required to the CC2540DK-MINI kit for power testing?
You must solder a wire to ground at pin 1 of the DEBUG connector, solder a 10 Ω resistor in line with VDD, and remove the 47uF capacitor (C7) from the board.
From: Texas Instruments CC2541 Bluetooth Low Energy Power Consumption Measurement Guide
What software change is needed in the SimpleBLEPeripheral project to reduce unnecessary power consumption?
You must comment out the line of source code that starts the periodic event timer in the SimpleBLEPeripheral_ProcessEvent function.
From: Texas Instruments CC2541 Bluetooth Low Energy Power Consumption Measurement Guide