UNO-3074 provides 512 KB of battery backup SRAM. This ensures that you have a safe place to store critical data. You can now write software applications without being concerned that system crashes will erase criti- cal data from the memory.
There is a BTRY LED in the front panel of the UNO-3074 (Figure 2.14). Please replace the lithium battery if the BTRY LED is activated.
