Earlier quoted context omitted.
>RP2040 Wow, that's an incredibly capable chip for the price!
How fast is the serial interface over USB? (What you need if you want to connect it to a normal PC)
$1 Microcontrollers (2017)
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Re: $1 Microcontrollers (2017)
#42The Texas Instruments MSP430 is another good one to look at. At one point, dev kits were available for under $10. It's a good choice for low-power applications. Comes with a free IDE.
Re: $1 Microcontrollers (2017)
#43However, I happen to learn about new solutions (new sensors, actors, boards, ICs) more randomly than systematically. I tried to google for databases, blogs or news outlets, but couldn’t find anything suited for my consumerish needs. Going through hundreds of pages for similar products on online shops also didn’t yield any good output. Do you guys know any such source? How do you keep yourself updated on interesting new products on the market?
Re: $1 Microcontrollers (2017)
#44This is a good article but it's a few years old, and out of date now. I can't see its date with my current adblock settings. It would be great if someone could find it and put it in the title. There are stupendously powerful $1 microcontrollers now, including the RP2040 (dual core cortex m0+ with 264KB ram on the chip), ESP32-S2 (Espressif core with 400k of ram and wifi), and ESP32-C3 with wifi and RISC-V core and ag…
>RP2040 Wow, that's an incredibly capable chip for the price!
NXP has rt1020 (Cortex-M7, no flash), or rt1024, which is same but 4 MB flash in the package- it's connected to the SPI-flash controller of the rt1020 core, so I think it's a multi-die package.
Re: $1 Microcontrollers (2017)
#45I don't want to read datasheets again whenever I need 100MHz more clock speed, or 1mW less power consumption. Because reading datasheets, at some point, feels like filling out tax forms.
Re: $1 Microcontrollers (2017)
#46What I want more than $1 microcontrollers is a series of controllers that goes from low price/low performance to higher price/higher performance, but all programmable with the same open-source software stack. I don't want to read datasheets again whenever I need 100MHz more clock speed, or 1mW less power consumption. Because reading datasheets, at some point, feels like filling out tax forms.
Re: $1 Microcontrollers (2017)
#47What I want more than $1 microcontrollers is a series of controllers that goes from low price/low performance to higher price/higher performance, but all programmable with the same open-source software stack. I don't want to read datasheets again whenever I need 100MHz more clock speed, or 1mW less power consumption. Because reading datasheets, at some point, feels like filling out tax forms.
The STM32 line is as close as you will get with this. Its HAL (Hardware Abstraction Layer) is MIT licensed and is very similar across products. Products in the same family are nearly pin compatible.
Re: $1 Microcontrollers (2017)
#48What I want more than $1 microcontrollers is a series of controllers that goes from low price/low performance to higher price/higher performance, but all programmable with the same open-source software stack. I don't want to read datasheets again whenever I need 100MHz more clock speed, or 1mW less power consumption. Because reading datasheets, at some point, feels like filling out tax forms.
Re: $1 Microcontrollers (2017)
#49This is a good article but it's a few years old, and out of date now. I can't see its date with my current adblock settings. It would be great if someone could find it and put it in the title. There are stupendously powerful $1 microcontrollers now, including the RP2040 (dual core cortex m0+ with 264KB ram on the chip), ESP32-S2 (Espressif core with 400k of ram and wifi), and ESP32-C3 with wifi and RISC-V core and ag…
The article about the Padauk is interesting. Especially the description of the FPPA feature. Multiple CPU contexts? This sounds suspiciously like SMT to me which would be a total novelty for a micro controller (afaik).
Re: $1 Microcontrollers (2017)
#50This is a good article but it's a few years old, and out of date now. I can't see its date with my current adblock settings. It would be great if someone could find it and put it in the title. There are stupendously powerful $1 microcontrollers now, including the RP2040 (dual core cortex m0+ with 264KB ram on the chip), ESP32-S2 (Espressif core with 400k of ram and wifi), and ESP32-C3 with wifi and RISC-V core and ag…
The article about the Padauk is interesting. Especially the description of the FPPA feature. Multiple CPU contexts? This sounds suspiciously like SMT to me which would be a total novelty for a micro controller (afaik).