melmerby 14,143 Posted 15 hours ago Share Posted 15 hours ago On 14/01/2021 at 12:21, tender said: Yeh, its a plug-in replacement for the A4988 apart from the direction which is reversed. Decided to convert my traverser to stepper motor drive. I ordered some TMC2208's which arrived this morning. I have purchased the V3.0 which seems to have some different options to V1.0 regarding UARTs. Any ideas if it makes a difference? I'm just knocking up a breadboard to test the workings using a Nano & a Shinano stepper out of an Epson Scanner I also ordered some more Pulleys and a belt (from CNC Planet) in case what I have isn't suitable. 2 Link to post Share on other sites
tender 3,857 Posted 2 minutes ago Share Posted 2 minutes ago 15 hours ago, melmerby said: Decided to convert my traverser to stepper motor drive. I ordered some TMC2208's which arrived this morning. I have purchased the V3.0 which seems to have some different options to V1.0 regarding UARTs. Any ideas if it makes a difference? I'm just knocking up a breadboard to test the workings using a Nano & a Shinano stepper out of an Epson Scanner I also ordered some more Pulleys and a belt (from CNC Planet) in case what I have isn't suitable. Yeh, you need to make sure you set it to Legacy Mode if using as a drop in replacement for the A4899 (same code). On the underside there should be a row of 3 solder pads. Make sure there are no links bridging these. V3.0 boards may have a link. This might be useful. Link to post Share on other sites
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