You can freely solder and use the free through holes! Introducing the expansion HAT board.
The "RasPi_HAT" is an expansion HAT board that can connect three HAT boards to a Raspberry Pi. You can mount a Raspberry Pi 3 or Raspberry Pi ZERO (WH) on the lower left part of the board, and attach other HAT boards elsewhere. There are free through-holes on the lower right part of the board, allowing you to solder as you wish, similar to a universal board. 【Features】 ■ All GPIO pins are connected to the array ■ Pins for UART and I2C are provided for external connections (JST EH connector) ■ Power can be supplied to the Raspberry Pi mounted on the lower left via USB, from a DC jack on the board, or from the EH connector *For more details, please refer to the PDF document or feel free to contact us.
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Tosa Electronics is committed to acquiring new knowledge and advanced technology in surface mounting and material procurement, and as a group of experts in electronics manufacturing, we will continue to challenge new possibilities. As for our products and services, Tosa Electronics offers electronic components EMS, material procurement EMS, electronic components, assemblies, remote monitoring systems, remote switch integration, robot-related products, evacuation guidance lights, material procurement, and we can also implement Kyocho soldering and lead-free soldering. Based on the unique manufacturing know-how that Tosa Electronics has cultivated over more than 20 years since its founding in the processing, assembly, and adjustment of electronic circuit boards, we will broadly create dreams with you, from one-off parts to mass production of omnidirectional robot parts and robot kits, including omni-wheels, omni-kits, and various mecanum wheels.