# Commands cheat sheet

<table data-header-hidden><thead><tr><th width="140.66666666666669"></th><th></th><th width="374"></th><th></th></tr></thead><tbody><tr><td><strong>Command code, [hex]</strong></td><td><strong>Firmware version</strong></td><td><strong>Command name</strong></td><td><strong>Sent by</strong></td></tr><tr><td>01</td><td>All</td><td><a href="/pages/9VGhz1hlCWUioKWP2e7n">Keep-Alive</a></td><td>End device</td></tr><tr><td>02</td><td>All</td><td><a href="/pages/9VGhz1hlCWUioKWP2e7n#set">Set keep-alive period</a></td><td>Server</td></tr><tr><td>04</td><td>All</td><td><a href="/pages/rMWSNwtClzFNnncYLxcW">Read device hardware and software version</a></td><td>Server/ End device</td></tr><tr><td>07</td><td>All</td><td><a href="/pages/jXKwQ93iwynnPI7U8eaV#set">Set child lock control function</a></td><td>Server</td></tr><tr><td>10</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#set">Set network join retry period</a></td><td>Server</td></tr><tr><td>11</td><td>All</td><td><a href="/pages/5RtzLCBugjHdVFx89s4C#set-uplink-messages-type-command-explanation">Set uplink messages type</a></td><td>Server</td></tr><tr><td>12</td><td>All</td><td><a href="/pages/9VGhz1hlCWUioKWP2e7n#get">Get keep-alive period</a></td><td>Server/ End device</td></tr><tr><td>14</td><td>All</td><td><a href="/pages/jXKwQ93iwynnPI7U8eaV#get">Get child lock control function</a></td><td>Server/ End device</td></tr><tr><td>19</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#get">Get network join retry period</a></td><td>Server/ End device</td></tr><tr><td>1B</td><td>All</td><td><a href="/pages/5RtzLCBugjHdVFx89s4C#get-uplink-messages-type-command-explanation">Get uplink messages type</a></td><td>Server/ End device</td></tr><tr><td>1C</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#set-1">Set device radio communication watch-dog parameters</a></td><td>Server</td></tr><tr><td>1D</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#get-1">Get device radio communication watch-dog parameters</a></td><td>Server/ End device</td></tr><tr><td>1E</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#set-1">Set CO2 boundary levels</a></td><td>Server</td></tr><tr><td>1F</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#get-1">Get CO2 boundary levels</a></td><td>Server/ End device</td></tr><tr><td>20</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#set-2">Set CO2 auto-zero value</a></td><td>Server</td></tr><tr><td>21</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#get-2">Get CO2 auto-zero value</a></td><td>Server/ End device</td></tr><tr><td>24</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#set-3">Set CO2 measurement period</a></td><td>Server</td></tr><tr><td>25</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#get-3">Get CO2 measurement period</a></td><td>Server/ End device</td></tr><tr><td>2A</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#set-4">Set CO2 auto-zero period</a></td><td>Server</td></tr><tr><td>2B</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#get-4">Get CO2 auto-zero period</a></td><td>Server/ End device</td></tr><tr><td>2E</td><td>≥ 1.3</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#set-2">Set uplink sending on button press</a></td><td>Server</td></tr><tr><td>2F</td><td>≥ 1.3</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#get-3">Get uplink sending on button press</a></td><td>Server/ End device</td></tr><tr><td>33</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#set-2">Set full display refresh period</a></td><td>Server</td></tr><tr><td>34</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#get-2">Get full display refresh period</a></td><td>Server/ End device</td></tr><tr><td>3B</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#deep-sleep-activation">Set device deep sleep mode</a></td><td>Server</td></tr><tr><td>40</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#set">Set flag show/hide current temperature</a></td><td>Server</td></tr><tr><td>41</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#get">Get flag show/hide current temperature</a></td><td>Server/ End device</td></tr><tr><td>42</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#set-1">Set flag show/hide humidity</a></td><td>Server</td></tr><tr><td>43</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#get-1">Get flag show/hide humidity</a></td><td>Server/ End device</td></tr><tr><td>44</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#set-2">Set flag show/hide light intensity</a></td><td>Server</td></tr><tr><td>45</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#get-2">Get flag show/hide light intensity</a></td><td>Server/ End device</td></tr><tr><td>80</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#get">Get CO2 measuring blind time</a></td><td>Server/ End device</td></tr><tr><td>81</td><td>All</td><td><a href="/pages/0JLtnEiTC9evxNqv9km8#set">Set CO2 measuring blind time</a></td><td>Server</td></tr><tr><td>82</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#set-3">Set CO2 related images to be shown on the display</a></td><td>Server</td></tr><tr><td>83</td><td>All</td><td><a href="/pages/EzwSseYhULahYnCg3t5g#get-3">Get CO2 related images to be shown on the display</a></td><td>Server/ End device</td></tr><tr><td>A4</td><td>All</td><td><a href="/pages/oUkAmWSU45zcza4sY7U5#get-lorawan-region">Get LoRaWAN Region</a></td><td>Server/ End device</td></tr><tr><td>A5</td><td>≥ 1.2</td><td><a href="/pages/4jpWBAPaZMeYZEjKx0Ux">Restart device</a></td><td>Server</td></tr></tbody></table>


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