Olimex Previews New Raspberry Pi Pico With More GPIOs
Olimex, a supplier of growth instruments and programmers for embedded units, announced its next RP2040 based motherboard, the RP2040-PICO30. Introduced by Olimex founder Tsvetan Usunov, the board brings much more GPIO pins whereas preserving the pinout of the Raspberry Pi Pico. The rationale for creation is a challenge to construct a contemporary peripheral MOS 6502 CPU pc For the bottom potential value.
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The usual pinout for Raspberry Pi Pico and Raspberry Pi Pico W has 26 user-controllable GPIO pins. 4 pins are reserved for controlling the facility provide (GPIO23), USB detecting (GPIO24), standing LED (GPIO25), and monitoring the facility provide (GPIO29). The pinout of Raspberry Pi Pico accommodates 40 pins in complete, the remaining 10 pins are used for a number of GND connections, 3.3V, 5V and ADC voltage reference. The RP2040-PICO30 removes 4 GND connections to squeeze a couple of extra GPIO pins into the pinout whereas sustaining total compatibility. A welcome addition to the RP2040-PICO30 is a USB C connector for information and energy. I desire this over micro USB because it feels extra sturdy and I haven’t got to fret about guessing the path appropriately. USB C additionally gives an influence provide that may present as much as 3A and the SY8089A DC to DC voltage regulator gives 3.3V at 3A.
The rationale for the additional GPIO is for an additional Olimex mission, Neo6502. In keeping with Tsvetan Usunov, founding father of Olimex, this mission is an try to “see whether it is potential to construct a contemporary peripheral 6502 pc on the lowest potential value”. Neo6502 is an try to mix previous and new in a single package deal. The previous is the MOS 6502 CPU, which was a preferred CPU within the early days of the twentieth century residence pc period. What’s new is the RP2040, which is able to emulate the RAM, programmable clock, video, USB host, storage and SID participant. The Neo6502 mission goals to deliver all this into one board that can value round $25 to $30.
The RP2040-PICO30 is presently within the prototype stage and is focused for launch in late Might 2023. It is available in two variations, a 2MB flash mannequin with a soldered cap for €4.50 / €6 and a 16MB flash mannequin with a soldered head for €6.50 / €8.
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