Chinese language embedded and hobbyist electronics specialist MuseLab has launched a brand new, sub-$4 board constructed across the WCH Electronics CH570D RISC-V wi-fi microcontroller — and guarantees an up to date model with Bluetooth Low Power (BLE) help to observe.
“nanoCH57x is a growth board based mostly on [the] WCH CH572/CH570 launched by MuseLab,” the corporate explains of its newest design. “The chip has a most fundamental frequency of 100MHz, helps Bluetooth BLE and a couple of.4GHz communication, and will be downloaded and burned by the USB port, which is handy for purchasers to conduct speedy prototype verification and growth.”
The nanoCH57x brings 100MHz of RISC-V energy to bear for beneath $4 — and BLE help is coming in a future revision. (📷: MuseLab)
The currently-shipping board, delivered to our consideration by CNX Software program, does not fairly fulfil that promise, although: MuseLab warns that its present inventory makes use of WCH’s CH570D chip and will not change to the CH572D till a while sooner or later. The distinction between the 2: the absence of Bluetooth Low Power (BLE) connectivity on the CH570D.
With both chip on board the compact PCB presents a single-core 32-bit RISC-V microcontroller operating at as much as 100MHz from an on-board 32MHz oscillator, with 12kB of static RAM (SRAM) and 256kB of flash storage of which 240kB is on the market for packages. A USB Sort-C port at one finish helps energy, programming, and USB 2.0 Full Velocity Host and Machine operation, with the microcontroller’s general-purpose enter/output (GPIO) pins introduced out to breadboard-friendly 0.1″ pin headers. There is a PCB antenna for proprietary 2.4GHz connectivity, which can even be used for Bluetooth Low Power (BLE) when manufacturing shifts to the CH572D chip.
The nanoCH570 is now out there on the MuseLab Tindie retailer at $3.50,, with no phrase but on pricing and availability for the nanoCH572 variant; the corporate has printed a schematic and compiled firmware on GitHub beneath an unspecified license.
