DSO shell with battery and usb charging
thingiverse
NB: There's an alternative version with the FreeCAD source here: https://www.thingiverse.com/thing:3345031 This is a remix of Geoffs DSO-150 case & battery, he did the hard part. The changes are: * It uses a single flat Lithium ion battery and a DC/DC boost converter. * It employs a TP4056 to charge the battery. * It has a switch. Edit: Component parts * DC/DC converter: https://www.ebay.com/itm/5PCS-MT3608-2A-DC-DC-Step-Up-Power-Apply-Module-Booster-Power-Module-for-Arduino-/201206848274?hash=item2ed8dcdb12 Any will do as long as it can output ~ 150 mA/9V, i.e., 500 mA from the battery. Just be wary of its width, especially the pot. * TP4056 including protection circuit: https://www.ebay.com/itm/5PCS-5V-Micro-USB-1A-18650-Lithium-Battery-Charging-Board-Charger-Module-/400665524431?hash=item5d4986b8cf * Switch: Found them: https://gearbest.com/diy-parts-components/pp_237508.html?wid=21 It is ~ 21.5m x 9.3mm, total depth is 25mm
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