Specifications¶
Memory requirements¶
The memory space (RAM and flash) used by MiraOS depends on how much of the operating system is being used. Garbage collection at compile time will clean up any unused parts of the operating system. The specifications here relates to when all parts of the operating system is being used.
| kB | |
|---|---|
| Flash usage1 | 95 |
| RAM usage (kB) | 19 |
Performance¶
Performance (current consumption, latency, message capacity, etc) is dependent on the performance rate option. For details about the test case used to establish these metrics please contact LumenRadio technical support.
Routing capacity¶
Mesh node configuration¶
Routing capacity is a metric of how much traffic can flow through and from a particular node in the network. In the table below we specify the routing capacity of different rates. These capacities refer to what's available for network application communication.
To be able to set the optimal rate for the nodes in the network, the application communication might need to be profiled. There is an API for MAC diagnostics which will provide performance metrics of a node that can be used for the profiling.
The rate configured for each node sets the routing capacity in each node. The lower the rate the higher the routing capacity is, with the trade-off that the energy consumption increases.
| Rate | Routing capacity (packets/min) | Time between listening slots (ms) |
|---|---|---|
| 0 (fast) | 2400 | 10 |
| 3 | 800 | 30 |
| 5 | 184 | 130 |
| 8 (mid) | 50 | 470 |
| 10 | 18 | 1270 |
Not all rates are defined here, for other needs contact LumenRadio technical support.
Leaf node configuration¶
| Rate | Time between listening slots (ms) |
|---|---|
| 12 (slow) | 3310 |
Not all rates are defined here, for other needs contact LumenRadio technical support.
Note
Leaf nodes can send faster than 3310ms, that is just the latency in the last hop to leaf nodes.
Network sizes¶
Possible network size depends on a number of parameters, such as amount of traffic, performance configuration, topology, etc. For help defining the limits in your particular scenario, please contact LumenRadio technical support.
However, for network size above 200 nodes, a Border Gateway is always required.
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Excluding Nordic Semiconductor's SoftDevice on nRF platforms. ↩