> For the complete documentation index, see [llms.txt](https://docs.mclimate.eu/mclimate-lorawan-devices/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mclimate.eu/mclimate-lorawan-devices/devices/mclimate-co2-display/co2-display-device-communication-protocol/commands-cheat-sheet.md).

# Commands cheat sheet

<table data-header-hidden><thead><tr><th width="140.66666666666669"></th><th></th><th width="429"></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>1.0</td><td><a href="/pages/GJRzIEsvGTL7hINLQoMB">Keep-alive</a></td><td>End device</td></tr><tr><td>02</td><td>1.0</td><td><a href="/pages/GJRzIEsvGTL7hINLQoMB#set">Set keep-alive period</a></td><td>Server</td></tr><tr><td>04</td><td>1.0</td><td><a href="/pages/hG75Cb9CN22mqf6YrFsI">Read device hardware and software version</a></td><td>Server/ End device</td></tr><tr><td>07</td><td>1.0</td><td><a href="/pages/xIpDcU8pu619GyHf60M6#set">Set child lock control function</a></td><td>Server</td></tr><tr><td>10</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#set">Set network join retry period</a></td><td>Server</td></tr><tr><td>11</td><td>1.0</td><td><a href="/pages/xRM62mtWP9Q7jmiGPdI6#set">Set uplink messages type</a></td><td>Server</td></tr><tr><td>12</td><td>1.0</td><td><a href="/pages/GJRzIEsvGTL7hINLQoMB#get">Get keep-alive period</a></td><td>Server/ End device</td></tr><tr><td>14</td><td>1.0</td><td><a href="/pages/xIpDcU8pu619GyHf60M6#get">Get child lock control function</a></td><td>Server/ End device</td></tr><tr><td>19</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#get">Get network join retry period</a></td><td>Server/ End device</td></tr><tr><td>1B</td><td>1.0</td><td><a href="/pages/xRM62mtWP9Q7jmiGPdI6#get">Get uplink messages type</a></td><td>Server/ End device</td></tr><tr><td>1C</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#set-1">Set device radio communication watch-dog parameters</a></td><td>Server</td></tr><tr><td>1D</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#get-1">Get device radio communication watch-dog parameters</a></td><td>Server/ End device</td></tr><tr><td>1E</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#set-1">Set CO2 boundary levels</a></td><td>Server</td></tr><tr><td>1F</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#get-1">Get CO2 boundary levels</a></td><td>Server/ End device</td></tr><tr><td>20</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#set-2">Set CO2 auto-zero value</a></td><td>Server</td></tr><tr><td>21</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#get-2">Get CO2 auto-zero value</a></td><td>Server/ End device</td></tr><tr><td>24</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#set-3">Set CO2 measurement period</a></td><td>Server</td></tr><tr><td>25</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#get-3">Get CO2 measurement period</a></td><td>Server/ End device</td></tr><tr><td>2A</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#set-4">Set CO2 auto-zero period</a></td><td>Server</td></tr><tr><td>2B</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#get-4">Get CO2 auto-zero period</a></td><td>Server/ End device</td></tr><tr><td>33</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#set-2">Set full display refresh period</a></td><td>Server</td></tr><tr><td>34</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#get-2">Get full display refresh period</a></td><td>Server/ End device</td></tr><tr><td>3B</td><td>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#deep-sleep-activation">Set device deep sleep mode</a></td><td>Server</td></tr><tr><td>3C</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-status">Set PIR sensor status</a></td><td>Server</td></tr><tr><td>3D</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-status">Get PIR sensor status</a></td><td>Server/ End device</td></tr><tr><td>3E</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-sensitivity">Set PIR sensor sensitivity</a></td><td>Server</td></tr><tr><td>3F</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-sensitivity">Get PIR sensor sensitivity</a></td><td>Server/ End device</td></tr><tr><td>40</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#set">Set flag show/hide current temperature</a></td><td>Server</td></tr><tr><td>41</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#get">Get flag show/hide current temperature</a></td><td>Server/ End device</td></tr><tr><td>42</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#set-1">Set flag show/hide humidity</a></td><td>Server</td></tr><tr><td>43</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#get-1">Get flag show/hide humidity</a></td><td>Server/ End device</td></tr><tr><td>44</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#set-2">Set flag show/hide light intensity</a></td><td>Server</td></tr><tr><td>45</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#get-2">Get flag show/hide light intensity</a></td><td>Server/ End device</td></tr><tr><td>48</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#set-3">Set PIR measurement period</a></td><td>Server</td></tr><tr><td>49</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#get-3">Get PIR measurement period</a></td><td>Server/ End device</td></tr><tr><td>4A</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-check-interval">Set PIR Check interval</a></td><td>Server</td></tr><tr><td>4B</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-check-interval">Get PIR Check interval</a></td><td>Server/ End device</td></tr><tr><td>4C</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-blind-period">Set PIR Blind period</a></td><td>Server</td></tr><tr><td>4D</td><td>1.0</td><td><a href="/pages/hU33dyPZMZSNnHli6Rh3#pir-blind-period">Get PIR Blind period</a></td><td>Server/ End device</td></tr><tr><td>80</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#get">Get CO2 measuring blind time</a></td><td>Server/ End device</td></tr><tr><td>81</td><td>1.0</td><td><a href="/pages/nKGiS3luWpxoxA01PRPa#set">Set CO2 measuring blind time</a></td><td>Server</td></tr><tr><td>82</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#set-3">Set CO2 related images to be shown on the display</a></td><td>Server</td></tr><tr><td>83</td><td>1.0</td><td><a href="/pages/M5kdwLrY1jQI1u7C3HLs#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>1.0</td><td><a href="/pages/xkGgnYjmTMxrdu8n9J9z#lorawan-region">LoRaWAN Region</a></td><td>Server/ End device</td></tr></tbody></table>


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