![](data:image/svg+xml,<svg display="block" id="3084754950" role="presentation" viewBox="0 0 90 42" xmlns="http://www.w3.org/2000/svg"><path d="M 8.28 17.646 C 3.329 17.646 0 14.1 0 9.083 C 0 3.807 3.671 0 8.621 0 C 11.95 0 13.914 1.644 14.085 1.903 L 12.548 4.238 C 12.291 4.067 10.925 3.027 8.792 3.027 C 5.548 3.027 3.67 5.796 3.67 8.736 C 3.67 12.109 5.462 14.445 8.621 14.445 C 10.925 14.445 12.719 13.234 12.804 13.147 L 14.255 15.656 C 14.255 15.829 11.951 17.645 8.28 17.645" fill="rgb(255, 255, 255)" height="17.646099999999997px" id="QslXmfAfI" transform="translate(49.168 11.85)" width="14.255000000000003px"/><path d="M 7.17 3.374 C 5.292 3.374 3.927 4.412 3.84 4.585 L 3.84 13.927 C 4.011 14.099 5.122 14.792 6.743 14.792 C 9.559 14.792 11.523 12.629 11.523 8.91 C 11.523 5.191 9.56 3.374 7.17 3.374 Z M 7.255 17.819 C 5.292 17.819 3.927 17.127 3.756 16.954 L 3.756 24.739 L 0 24.739 L 0 0.519 L 3.328 0.519 L 3.328 1.644 C 3.499 1.471 5.122 0 7.852 0 C 12.291 0 15.279 3.548 15.279 8.563 C 15.364 14.186 11.693 17.817 7.254 17.817" fill="rgb(255, 255, 255)" height="24.7392px" id="Jv0Bp2r5m" transform="translate(66.412 11.677)" width="15.280263915789673px"/><path d="M 0.341 7.265 L 4.097 7.265 L 4.097 24.046 L 0.341 24.046 Z M 2.219 4.411 C 1.024 4.411 0 3.46 0 2.248 C 0 1.036 1.024 0 2.219 0 C 3.414 0 4.353 1.037 4.353 2.248 C 4.353 3.459 3.415 4.411 2.219 4.411 Z" fill="rgb(255, 255, 255)" height="24.045689786529543px" id="rHOnirvNp" transform="translate(85.019 5.105)" width="4.352800000000002px"/><path d="M 7.683 11.463 C 7.598 11.29 7.511 11.203 7.426 11.03 C 7.341 10.943 7.341 10.857 7.255 10.684 C 5.548 7.743 3.67 5.235 2.048 3.592 C 1.623 3.158 1.195 3.158 0.769 3.158 C 0.512 2.898 0.257 2.639 0 2.379 C 0 0.908 0.683 0.13 1.11 0.043 C 1.623 -0.128 2.22 0.216 2.902 0.995 C 4.609 2.812 6.401 6.704 7.683 11.461" fill="rgb(255, 255, 255)" height="11.462948338486765px" id="tChElFj4n" transform="translate(14.254 0.474)" width="7.682599999999999px"/><path d="M 9.856 9.461 C 9.771 9.375 9.685 9.287 9.514 9.115 C 9.428 9.029 9.343 8.942 9.258 8.856 C 6.867 6.432 4.393 4.531 2.429 3.32 C 1.916 2.973 1.489 3.147 1.063 3.233 C 0.722 3.06 0.466 2.887 0.125 2.713 C -0.218 1.243 0.209 0.379 0.636 0.118 C 1.148 -0.14 1.832 0.033 2.599 0.552 C 4.648 1.936 7.379 5.223 9.855 9.461" fill="rgb(255, 255, 255)" height="9.460630695019557px" id="vloudrALc" transform="translate(9.775 2.303)" width="9.855710115060003px"/><path d="M 11.6 6.909 C 11.515 6.823 11.343 6.736 11.174 6.649 C 11.087 6.563 10.918 6.563 10.832 6.476 C 7.929 4.833 5.027 3.536 2.808 2.93 C 2.211 2.758 1.869 3.017 1.526 3.19 C 1.185 3.104 0.844 3.017 0.503 2.93 C -0.266 1.634 -0.01 0.681 0.331 0.335 C 0.759 -0.096 1.442 -0.096 2.38 0.25 C 4.6 1.027 8.101 3.449 11.6 6.909 Z" fill="rgb(255, 255, 255)" height="6.909181958759132px" id="Jjs0AiJtx" transform="translate(5.812 5.287)" width="11.59970127692726px"/><path d="M 12.602 4 C 12.431 3.915 12.345 3.915 12.174 3.915 C 12.089 3.915 11.92 3.827 11.833 3.827 C 8.59 2.961 5.516 2.53 3.212 2.53 C 2.529 2.53 2.274 2.875 2.017 3.134 L 0.993 3.134 C -0.117 2.009 -0.117 1.059 0.139 0.626 C 0.396 0.107 1.077 -0.065 2.103 0.021 C 4.323 0.107 8.334 1.579 12.602 4 Z" fill="rgb(255, 255, 255)" height="4.000438971629659px" id="sM4pEUyNl" transform="translate(2.762 9.234)" width="12.602083166916639px"/><path d="M 12.82 1.309 L 12.051 1.309 C 8.723 1.309 5.65 1.743 3.43 2.348 C 2.833 2.52 2.661 2.866 2.49 3.299 C 2.149 3.384 1.808 3.472 1.466 3.558 C 0.185 2.779 -0.071 1.914 0.015 1.395 C 0.185 0.876 0.782 0.445 1.722 0.271 C 3.855 -0.334 8.038 0.1 12.819 1.309" fill="rgb(255, 255, 255)" height="3.557663868293785px" id="WFA1ZSpfu" transform="translate(0.836 13.482)" width="12.820262677582846px"/><path d="M 12.377 0 C 12.206 0 12.12 0.086 11.951 0.086 C 11.864 0.086 11.695 0.173 11.609 0.173 C 8.365 1.124 5.549 2.249 3.5 3.373 C 2.988 3.719 2.903 4.15 2.817 4.498 C 2.475 4.67 2.22 4.844 1.963 5.017 C 0.512 4.584 0 3.806 0 3.287 C 0 2.767 0.512 2.249 1.366 1.73 C 3.244 0.779 7.512 0.086 12.378 0" fill="rgb(255, 255, 255)" height="5.017299999999999px" id="WIqTxAC_K" transform="translate(0 16.695)" width="12.3776px"/><path d="M 11.312 0 C 11.141 0.086 11.055 0.173 10.884 0.26 C 10.798 0.346 10.714 0.346 10.543 0.433 C 7.641 2.163 5.164 4.065 3.544 5.709 C 3.116 6.141 3.116 6.66 3.116 7.006 C 2.859 7.265 2.603 7.525 2.433 7.785 C 0.896 7.785 0.214 7.18 0.043 6.66 C -0.127 6.141 0.214 5.449 0.983 4.844 C 2.775 3.114 6.616 1.298 11.311 0" fill="rgb(255, 255, 255)" height="7.784800000000001px" id="MK0nqktck" transform="translate(0.297 18.944)" width="11.311724843428175px"/><path d="M 9.252 0 C 9.168 0.086 9.081 0.173 8.911 0.346 C 8.825 0.432 8.74 0.519 8.654 0.606 C 6.264 3.028 4.386 5.536 3.191 7.526 C 2.849 8.13 3.02 8.564 3.191 8.91 C 3.02 9.255 2.849 9.515 2.679 9.775 C 1.227 10.208 0.375 9.775 0.118 9.343 C -0.138 8.824 0.032 8.131 0.544 7.354 C 1.825 5.365 5.068 2.597 9.251 0.002" fill="rgb(255, 255, 255)" height="9.954311867869848px" id="JsfR8EvL2" transform="translate(2.186 21.192)" width="9.252355542257117px"/><path d="M 6.819 0 C 6.734 0.086 6.647 0.26 6.562 0.433 C 6.477 0.519 6.477 0.692 6.391 0.779 C 4.77 3.72 3.489 6.66 2.892 8.909 C 2.722 9.514 2.976 9.86 3.148 10.207 C 3.063 10.553 2.977 10.899 2.892 11.245 C 1.612 11.937 0.672 11.764 0.331 11.418 C -0.095 10.985 -0.095 10.294 0.246 9.342 C 1.013 7.006 3.404 3.546 6.819 0 Z" fill="rgb(255, 255, 255)" height="11.720625000000002px" id="m4pphcds0" transform="translate(5.045 23.527)" width="6.818575406303453px"/><path d="M 3.863 0 C 3.778 0.173 3.778 0.26 3.778 0.431 C 3.692 0.519 3.692 0.691 3.692 0.778 C 2.838 4.065 2.411 7.179 2.411 9.514 C 2.411 10.206 2.753 10.464 3.094 10.724 L 3.094 11.763 C 1.984 12.801 1.045 12.887 0.619 12.628 C 0.107 12.369 -0.064 11.677 0.021 10.639 C 0.021 8.39 1.473 4.325 3.863 0 Z" fill="rgb(255, 255, 255)" height="12.751489535946135px" id="cpEqjkGDz" transform="translate(9.025 25.603)" width="3.8629048371474006px"/><path d="M 3.473 11.589 C 2.704 12.888 1.85 13.234 1.339 13.06 C 0.828 12.888 0.401 12.281 0.231 11.33 C -0.282 8.995 0.06 4.756 1.254 0 L 1.254 0.777 C 1.254 4.151 1.682 7.266 2.279 9.515 C 2.449 10.12 2.876 10.292 3.217 10.551 C 3.217 10.899 3.303 11.245 3.474 11.59" fill="rgb(255, 255, 255)" height="13.10186100081782px" id="uppDfucj7" transform="translate(13.172 27.421)" width="3.474019629105161px"/><path d="M 5.122 10.64 C 4.694 12.11 3.927 12.629 3.414 12.629 C 2.902 12.629 2.304 12.11 1.878 11.245 C 0.768 9.169 0.085 4.931 0 0 C 0 0.172 0.085 0.259 0.085 0.432 C 0.085 0.519 0.171 0.692 0.171 0.778 C 1.109 4.065 2.22 6.919 3.329 8.995 C 3.67 9.514 4.096 9.6 4.439 9.687 C 4.78 10.033 4.951 10.379 5.122 10.638" fill="rgb(255, 255, 255)" height="12.628800000000002px" id="vo5UG0vdZ" transform="translate(16.303 28.716)" width="5.121799999999997px"/><path d="M 7.596 8.995 C 7.596 10.551 6.914 11.244 6.487 11.329 C 5.975 11.503 5.377 11.158 4.695 10.379 C 3.072 8.649 1.28 4.755 0 0 C 0.085 0.172 0.171 0.259 0.256 0.431 C 0.341 0.517 0.341 0.692 0.427 0.777 C 2.134 3.719 4.012 6.227 5.633 7.87 C 6.061 8.304 6.487 8.304 6.915 8.304 C 7.084 8.476 7.341 8.735 7.597 8.995" fill="rgb(255, 255, 255)" height="11.373210313461023px" id="CwMQ25e3M" transform="translate(18.523 29.41)" width="7.597100000000001px"/><path d="M 9.133 9.255 C 8.621 9.515 7.938 9.34 7.17 8.821 C 5.207 7.61 2.475 4.237 0 0 C 0.085 0.086 0.169 0.172 0.341 0.346 C 0.426 0.432 0.512 0.519 0.598 0.605 C 2.988 3.026 5.463 4.93 7.427 6.14 C 7.939 6.486 8.365 6.314 8.793 6.226 C 9.134 6.4 9.39 6.573 9.731 6.745 C 9.988 8.13 9.561 8.994 9.134 9.254" fill="rgb(255, 255, 255)" height="9.373902685657523px" id="LT4eU69fV" transform="translate(20.828 29.583)" width="9.808773264265323px"/><path d="M 11.268 6.488 C 10.84 6.922 10.159 6.922 9.22 6.574 C 7 5.883 3.501 3.374 0 0 C 0.085 0.088 0.257 0.173 0.428 0.26 C 0.512 0.348 0.683 0.348 0.769 0.433 C 3.671 2.078 6.573 3.374 8.792 3.979 C 9.389 4.152 9.732 3.892 10.073 3.719 C 10.415 3.807 10.756 3.892 11.097 3.979 C 11.782 5.19 11.609 6.142 11.268 6.487" fill="rgb(255, 255, 255)" height="6.824935237585997px" id="shxgCPSUC" transform="translate(23.047 29.149)" width="11.567287574027546px"/><path d="M 12.548 3.374 C 12.291 3.893 11.609 4.066 10.585 3.979 C 8.281 3.893 4.268 2.422 0 0 C 0.17 0.087 0.257 0.087 0.426 0.087 C 0.511 0.173 0.682 0.173 0.767 0.173 C 4.011 1.038 7.085 1.47 9.389 1.47 C 9.986 1.47 10.327 1.124 10.584 0.865 L 11.609 0.865 C 12.718 2.076 12.803 2.941 12.547 3.374" fill="rgb(255, 255, 255)" height="4.000464435441412px" id="uu7Nczyji" transform="translate(25.096 28.025)" width="12.667149073078093px"/><path d="M 12.975 2.249 C 12.804 2.768 12.206 3.2 11.268 3.373 C 8.964 3.892 4.78 3.546 0 2.335 L 0.768 2.335 C 4.098 2.335 7.169 1.903 9.389 1.297 C 9.986 1.124 10.158 0.778 10.414 0.345 C 10.755 0.259 11.096 0.173 11.438 0 C 12.803 0.951 13.146 1.816 12.975 2.249" fill="rgb(255, 255, 255)" height="3.606840004247573px" id="CyUPdgCMb" transform="translate(26.803 24.219)" width="13.015267805496734px"/><path d="M 12.463 1.729 C 12.463 2.334 11.951 2.853 11.097 3.286 C 9.049 4.411 4.866 5.189 0 5.189 C 0.171 5.189 0.256 5.103 0.426 5.103 C 0.512 5.103 0.683 5.015 0.768 5.015 C 4.011 4.065 6.828 2.94 8.877 1.816 C 9.56 1.384 9.474 0.865 9.646 0.346 C 9.817 0.259 9.987 0.173 10.158 0 C 11.865 0.346 12.462 1.211 12.462 1.73" fill="rgb(255, 255, 255)" height="5.188899999999997px" id="HfjkjT_ZU" transform="translate(28.168 19.463)" width="12.463100000000004px"/><path d="M 10.244 3.036 C 8.536 4.68 4.694 6.496 0 7.793 C 0.17 7.705 0.257 7.62 0.426 7.533 C 0.512 7.445 0.597 7.36 0.768 7.36 C 3.67 5.63 6.146 3.726 7.766 2.084 C 8.279 1.565 8.107 0.96 8.194 0.527 C 8.363 0.355 8.535 0.181 8.62 0.007 C 10.327 -0.079 11.096 0.614 11.181 1.131 C 11.352 1.736 11.011 2.344 10.242 3.035" fill="rgb(255, 255, 255)" height="7.793082706379288px" id="SXOvdlaRs" transform="translate(28.852 14.61)" width="11.224057094005001px"/><path d="M 8.707 2.721 C 7.512 4.71 4.183 7.478 0 9.986 C 0.087 9.899 0.171 9.814 0.341 9.64 C 0.428 9.554 0.512 9.468 0.598 9.38 C 2.989 6.959 4.866 4.451 6.062 2.461 C 6.403 1.941 6.231 1.51 6.146 1.076 C 6.318 0.731 6.488 0.472 6.659 0.126 C 8.109 -0.22 8.963 0.211 9.22 0.645 C 9.389 1.164 9.22 1.856 8.707 2.721 Z" fill="rgb(255, 255, 255)" height="9.986170943855772px" id="I3iesR8ly" transform="translate(29.021 10.081)" width="9.283076753082124px"/><path d="M 6.488 2.411 C 5.805 4.66 3.33 8.206 0 11.754 C 0.085 11.666 0.171 11.493 0.257 11.32 C 0.341 11.234 0.341 11.061 0.428 10.974 C 2.049 8.034 3.33 5.092 3.927 2.843 C 4.098 2.238 3.842 1.892 3.67 1.546 C 3.756 1.201 3.841 0.855 3.927 0.508 C 5.293 -0.269 6.146 -0.01 6.488 0.336 C 6.829 0.767 6.829 1.461 6.488 2.411 Z" fill="rgb(255, 255, 255)" height="11.753584393394782px" id="pbQLCdVwI" transform="translate(28.596 6.066)" width="6.743699999999997px"/><path d="M 3.927 2.027 C 3.842 4.362 2.391 8.427 0 12.752 C 0.085 12.58 0.085 12.494 0.085 12.321 C 0.171 12.235 0.171 12.061 0.171 11.975 C 1.025 8.687 1.451 5.573 1.451 3.238 C 1.451 2.633 1.109 2.287 0.854 2.027 L 0.854 0.988 C 1.964 -0.049 2.902 -0.136 3.33 0.124 C 3.756 0.297 4.012 0.988 3.927 2.027 Z" fill="rgb(255, 255, 255)" height="12.752261951058593px" id="oBvQcz5UO" transform="translate(27.57 2.991)" width="3.9432808199121254px"/><path d="M 2.134 12.645 L 2.134 12.299 C 2.134 8.925 1.706 5.811 1.196 3.561 C 1.025 2.957 0.599 2.784 0.256 2.524 C 0.171 2.179 0.086 1.831 0 1.486 C 0.769 0.188 1.622 -0.071 2.134 0.015 C 2.646 0.188 3.072 0.794 3.243 1.745 C 3.756 4.081 3.415 8.319 2.219 13.077 L 2.219 12.644 L 2.134 12.644 Z" fill="rgb(255, 255, 255)" height="13.077048589670875px" id="C7U1kXqYA" transform="translate(23.9 0.849)" width="3.4740394102442735px"/><path d="M 5.036 12.629 C 5.036 12.455 4.952 12.369 4.952 12.195 C 4.952 12.109 4.865 11.937 4.865 11.85 C 3.927 8.563 2.817 5.709 1.707 3.633 C 1.366 3.028 0.94 3.028 0.512 2.854 C 0.341 2.508 0.171 2.249 0 1.989 C 0.428 0.519 1.195 0 1.707 0 C 2.22 0 2.732 0.519 3.244 1.384 C 4.268 3.46 4.952 7.698 5.036 12.629 Z" fill="rgb(255, 255, 255)" height="12.6287px" id="cy9raRJnv" transform="translate(19.119 0)" width="5.036200000000001px"/></svg>)
The challenge
According to the United Nations, 14% of the world’s adult population cannot read or write, and 67% said that the most significant barrier to education is a lack of resources. To enable Global Teacher – whose mission is to make digital education accessible to everyone, even in remote areas of the world – to provide bespoke educational materials via its solar-powered projector, the charity partnered with CPI as part of the SONNET project to investigate the communication technologies available in remote locations of developing countries.
How CPI helped
Provided European Regional Development Fund (ERDF) consultancy
Explored communication technologies including Bluetooth, ZigBee, LTE Cellular, NB-IoT, SigFox and satellite
Offered impartial advice to recommend the best solutions
Achievements
A report that presented the technologies available for remote downloading of data, their relative coverage, and costs
Recommendations of the most suitable communication technologies for the solar-powered projector
Impact
We supported Global Teacher with understanding the available technologies for remote downloading, which will help the charity determine future product developments and added functionality going forward. In January 2022, the charity successfully launched the world’s first educational, 3D printed, solar-powered projector to teach one million marginalised students, offline and off-grid.
