Description
This is one of the latest OnStep PCB designs of Howard’s. Howard allows GDA to sell these PCBs as they do have a non-commercial licensing applied to them.
This PCB will only work with OnStepX. Which is the latest version of the OnStep family of software.
More information on this PCB can be found at these URLs. Please read this information closely and this information is subject to change.
https://oshwlab.com/hdutton/maxpcb4e
https://onstep.groups.io/g/main/wiki/33523
This is the power house OnStep PCB if you ask me. It is all speed with two extremely fast Teensy MCUs and the W5000 for hard wired ethernet.
Here is a break down on the ESP32 vs. the Teensy
https://onstep.groups.io/g/main/wiki/7118
| Processor | MCU~Speed | Memory | Flash | EEPROM/NV | Hardware Timers | Hardware– FP Math | Fastest*- Step Rate |
| Teensy3.2 | 72 MHz | 64K | 256K | 2K | 4 x 32 bit | No | 71kHz |
| ESP32 | 2 Core, 240 MHz | 512K | 4M | 4K | 2 x 32 bit | Yes | 62kHz |
| Teensy4.0 | 600 MHz | 1M | 2M | 1K | 4 x 32 bit | Yes | 667kHz |
| Teensy4.1 | 600 MHz | 1M | 8M | 4K | 4 x 32 bit | Yes | 667kHz |
This PCB will not have Bluetooth or Wi-Fi. It will have just networking over hardwired ethernet and serial connection via USB. If you are looking for the fastest networking and fastest processing this is the PCB.
The Teensy 4.1 and 4.0 can be found on this website. This is probably the most expensive PCBs also as the Teeny MCUs are about $80 alone.
https://www.pjrc.com/store/teensy40.html
https://www.pjrc.com/store/teensy41.html
If you are not in the USA and want me to sell/ship you the Teensy MCUs please contact me and i can arrange combined shipping for orders outside of the USA. They are expensive.
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