cashhwa.blogg.se - Stm32 blue pill

They must be the SPI variant with M0/M1/M2 pins down. Stepper Drivers: The LV8729 (for low current motors) and S109 (for high current motors) are verified to work, and recommended.

WiFi: Works with WeMos D1 Mini (recommended), ESP01 (requires wiring changes to 3.3V power instead of the default 5V wiring below), and NodeMCU Lolin (works, but too large of a footprint).īluetooth: Works with an HC05 6-pin module from eBay. You can use OnStep's extended command set, which is based on the popular Meade LX200 command set, to control the mount from Planetarium programs like Stellarium, Cartes du Ciel, KStars, Sky Planetarium It is recommended that all new users go with the F303CC. The latter is more than 2X faster than the original Blue Pill, and has double the flash memory, so it is future proof. OnStep was ported to the STM32 platform by Khalid Baheyeldin, with valuable assistance provided by many people, including author of Onstep Howard Dutton, Dave Schwartz, Pierluigi Giorgi, and others.īefore you buy components, or connect any of them please read the entire page carefully.īoard Variants: The STM32F103C8T6 Blue Pill, and RobotDyn STM32F303CC are the only supported boards for the Blue Pill PCB.

Real Time Clock, as a result of using an RTC module with EEPROM, the STM32 will keep the date and time indefinitely.

Relative Ease of Build, avoiding discrete components as much as practical.

Moderately fast, this board can use two MCU's and the STM32F103C8T6 (original "Blue Pill") has generally acceptable performance, but the STM32F303CC is even faster similar to an ESP32 for our purposes.

Low Cost, using inexpensive commodity components available from multiple sources on eBay, AliExpress and other marketplaces.

The STM32 OnStep was conceived with these objectives in mind: