Otii applications and use cases
Device and firmware power measurements and analysis
| Use case | Otii instrument | Automation Toolbox | Battery Toolbox |
|---|---|---|---|
Power and current profiling Measure, analyze and optimize your embedded device’s real current and power consumption. High dynamic range, high resolution measurements. | Arc/Ace | ||
UART logs sync with power measurements Synchronise your debug logs with power measurements to understand what drains the energy. Insights are the first step to optimizing. Iterate measurements for all changes in firmware. | Arc/Ace | ||
In-line mode/Ampere meter mode measurements Measure the current, voltage, power and energy in-line with power source and your embedded device. Like a multimeter, but also measures both current and voltage at the same time. | Ace | ||
Subsystem power measurement of an embedded device Follow the power, from the battery connector throughout the system that you are building. Examine how each subsystem affects current consumption and voltage levels. | Arc/Ace | ||
Control device via AT Command while power measuring Optimize eDRX and PSM settings of your device by changing the settings in real time while measuring. Improve this further by automating this with a script. Python script available at Qoitech Github. | Arc/Ace | ||
Logic analyzer Connect DUT digital signals to GPIs to monitor logic levels, like a logic analyzer. Use the MCU GPIOs as a status indicator and view them in the Otii desktop application. | Arc/Ace | ||
Differential measurements Measure current and voltage without using the internal power supply of Otii hardware. | Arc/Ace | ||
2-channel power supply Use Otii Ace as two power boxes and four multimeters, due to its isolation between the main channel and the expansion board. | Ace |
Automated power measurements and testing
| Use case | Otii instrument | Automation Toolbox | Battery Toolbox |
|---|---|---|---|
Automation with Python and C# for regression testing, validation and Continuous Integration (CI) Control your Otii Arc/Ace with the built-in TCP-server from any language or system that supports communication over TCP sockets, using a JSON-based API. Any of the use cases in this and other application areas can be automated. | Arc/Ace | ◼︎ | |
Automated measurement of a PMIC (DC/DC converter) efficiency Check the efficiency of your PMIC (DC/DC converter) with your embedded device as a consumer, and verify its efficiency across all loads. | Arc/Ace | ◼︎ | |
Power measurement in functional testing with Raspberry Pi Automate functional testing with Raspberry Pi, streamlining comprehensive testing in development workflows. | Arc/Ace | ◼︎ |
Battery measurements and analysis
| Use case | Otii instrument | Automation Toolbox | Battery Toolbox |
|---|---|---|---|
Battery cycling and performance validation Charge and discharge in single or multiple steps, cycle-discharges, and design custom scenarios. Test and validate the performance of one or multiple batteries in real time. | Ace | ◼︎ | |
Battery profiling Create discharge profiles for the batteries under specific discharge conditions that reflect how your application behaves. Use these to emulate batteries. | Arc/Ace | ◼︎ | |
Battery emulation Use Otii Arc/Ace to act as a battery, following a discharge curve of your specific discharge profile or preset Otii profiles. Emulate battery, get the real capacity value, and find the right match for your application. | Arc/Ace | ◼︎ | |
Evaluation of battery passivation Measure and visualize the passivation effects to understand and prevent premature device resets. | Ace | ◼︎ |
Energy harvesting measurements and analysis
| Use case | Otii instrument | Automation Toolbox | Battery Toolbox |
|---|---|---|---|
PV cell and energy storage evaluation In-line measurements to evaluate how much current and energy a solar panel/PV cell is charging the embedded device’s energy storage. Make sure that your PV cell generates enough energy to keep your system powered at all use cases. | Ace | ||
Stress testing of PV cell and energy storage Using Otii Ace as the load, emulating your embedded device under different conditions (protocols, duty cycles, applications) to evaluate whether the energy harvesting system is self-sufficient. | Ace | ◼︎ |