Libelium Waspmote Technical Manual page 33

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Sending the photos and videos
Figure : General flow diagram to send photos and videos
The fastest way to send the photos and the videos is by using the 3G connection. This transmission method has two advantages
over WiFi. The first one is the data location, the files (photos or videos) are stored directly into the 3G/GPRS module or in the
microSD card of the 3G/GPRS board. So, the transmission of data to send is not limited by the baudrate of the UART (limited to
115200 bps). The second one is the transmission speed of the 3G connection (HSUPA up to 5.76Mbps). This allows a fast upload
of the file (20 seconds to configure the access to the FTP server and upload 100KB) and a reduction of the time Waspmote in
powered ON.
The second transmission way is WiFi. The file must be stored first in the microSD card of Waspmote and then send to the WiFi
module for send to the network. The advantages of this method are the high number of WiFi networks available and the high
transmission speeds (the time required to upload a file it's around 90 seconds).
A short time of transmission is very important to increase the life of the battery.
Refer to table "Time required to send a photo" in section "Sending times"
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v4.3

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