Search found 205 matches

by Ollie
Tue Jan 16, 2018 7:24 pm
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 622
Views: 11832

Re: F405 & F411 versions of the BluePill

Once we have the new F4 blue pills from manufacturing, what is the process to purchase them? I would like to buy one.
- when is it estimated to be available?
- what is the estimated total price for US customers?

Cheers, Ollie
by Ollie
Sun Jan 14, 2018 11:05 pm
Forum: Off topic
Topic: 3d Printer on aliexpress
Replies: 5
Views: 151

Re: 3d Printer on aliexpress

oops - you were talking about Chinese 3D printer and I did read it as Chinese CNC router :oops:
by Ollie
Sun Jan 14, 2018 4:56 pm
Forum: Off topic
Topic: 3d Printer on aliexpress
Replies: 5
Views: 151

Re: 3d Printer on aliexpress

Hi Dev, It took me over 12 months to analyze my needs and evaluate the alternatives. For some small projects, the 2030 style would be enough, but the cost-performance ratio is not very good because the cost of the control system that is independent of the size. The 4030 or 6040 systems are not very ...
by Ollie
Sun Jan 14, 2018 4:34 pm
Forum: Cores
Topic: 2018Jan02 Core Version
Replies: 7
Views: 189

Re: 2018Jan02 Core Version

Ray, I do share your thought process in this. My solution has been to abandon Arduino and STM32duino libraries for STM32 development. My confidence in CubeMX libraries is increasing. They can be very verbose and bulky, but they seem to be quite well tested and validated. For larger systems with Free...
by Ollie
Thu Jan 11, 2018 3:46 pm
Forum: Projects
Topic: F405 & F411 versions of the BluePill
Replies: 622
Views: 11832

Re: F405 & F411 versions of the BluePill

I do agree
by Ollie
Sun Jan 07, 2018 6:18 pm
Forum: General discussion
Topic: ESP32 board with almost BluePill factor
Replies: 11
Views: 367

Re: ESP32 board with almost BluePill factor

Roger, This ESP32 has totally different pins than any F103 board. My problems have been with WiFi connections. I have over 10 different ESP32 boards and most of them are totally OK. I am pleased with the Adafruit board apparent quality, but I don't like its size. For ESP32 WiFi, there seem to be new...
by Ollie
Sat Jan 06, 2018 6:34 pm
Forum: General discussion
Topic: ESP32 board with almost BluePill factor
Replies: 11
Views: 367

Re: ESP32 board with almost BluePill factor

I have been using this board and hitting my head against a wall. I did go through 3 versions hoping that the new versions would solve the problems. Now I have given up. Instead, I am waiting for that Espressif will release a narrow version quite soon.
by Ollie
Wed Jan 03, 2018 4:01 pm
Forum: General discussion
Topic: Happy New Year for 2018
Replies: 16
Views: 357

Re: Happy New Year for 2018

Best 2018 for everybody.

In 2017, the best thing is the concrete progress in 4xx pill development. Small surprises for me in 2017 were:
- CubeMx HAL and LL are not gaining popularity in this forum
- ESP32 board prices have come down, but not eroding interest in F103/F407

Cheers, Ollie
by Ollie
Tue Dec 05, 2017 5:12 am
Forum: General discussion
Topic: Summer camp ideas?
Replies: 11
Views: 220

Re: Summer camp ideas?

For low cost, you could have an ultrasound sensor mounted on a servo and do a sonar mapping. The numeric results could be moved into Excel, Python, or Processing for rendering. If there would be more time, there could be a real-time sonar display. For fun, there could be a competition to recognize s...
by Ollie
Tue Nov 28, 2017 5:31 pm
Forum: Postbag
Topic: Robot Dyn Black Pills
Replies: 5
Views: 644

Re: Robot Dyn Black Pills

I did like the fact that the boot pins are missing. I didn't even use a resistor, but a direct soldering of the boot0. It has been working without any problems for many weeks.