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Have MeshDynamics nodes been used in explosive environments (e.g. underground coal mining)?

April 26, 2017Coal environments explosive meshdynamics mining nodes underground Used

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Have MeshDynamics nodes been used in explosive environments (e.g. underground coal mining)?

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Yes, with enclosure modifications. The components on MD4000 single board computer runs on 3.3V. If 3.3V are supplied directly to the MD4000 board (eliminating the DC-DC converter) then the system becomes intrinsically safe. No sparks can occur at that low voltage. Since 5-6 amps are needed at this low voltage to drive the mesh radios and processor, the mesh node enclosure will use a different set of connectors than the standard RJ45 connectors. Contact Technical Support for details.