crwdns2933803:06crwdne2933803:0
crwdns2933797:0Arthur Shicrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Arthur Shi
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| [* black] The motor power lines have some interesting (read: completely mismatched) color coordination going on—fixers take note. | |
| [* icon_caution] They could also do with some more support and insulation (hot glue) on the solder joints. | |
| [* black] Here's what we found on a quick tour of the main board: | |
| [* red] GigaDevice [link|https://www.gigadevice.com/products/microcontrollers/gd32/arm-cortex-m3/mainstream-line/gd32f103-series/|GD32F103] ARM Cortex-M3 | |
| [* orange] Six [http://ebldc.com/?p=147|half-H|new_window=true] bridge motor drivers, made up of two large MOSFETs each | |
| - | [* yellow] Changjiang Electronics Technology Co., LTD |
| + | [* yellow] Changjiang Electronics Technology Co., LTD CJ78M05 0.5A/5V voltage regulator |
| [* green] Two pairs of 0.007 ohm resistors by the power inlet (R007). | |
| [* icon_note] Resistors like these, with very low resistance, are used to sense current—helping to shut things down if a motor stalls out. |