5 ms·

It will be great to have another cheap microcontroller in the space with much more advanced radios. Is there any info on power draw? I didn’t see that from the

It will be great to have another cheap microcontroller in the space with much more advanced radios. Is there any info on power draw? I didn’t see that from the initial specs.

FullyFunctional 6y ago
It's right there on the page but it looks like he blocks copy and paste which is ridiculous: 0.5 uA (deep sleep), Wifi Rx: 18 mA. The first link (https://www.cnx-software.com/2020/10/12/hi3861-based-hispark-wifi-iot-development-board-supports-liteos-and-harmonyos/ https://www.cnx-software.com/2020/10/12/hi3861-based-hispark...) has more information. I'm puzzled about his Rust remark; if it's an RV32 then Rust already supports nostd on riscv32i-unknown-none-elf, riscv32imac-unknown-none-elf, and riscv32imc-unknown-none-elf.
- deleted 6y ago
  [deleted]
- zokier 6y ago
  If those figures are right, that would put this new chip as dramatically better than esp32, right?
  - ohazi 6y ago
    Yes, the esp8266 and esp32 are power hogs and run quite warm, which is why you don't see them in battery powered gadgets very often. It'll be interesting to do real world measurements when this chip is available.
- dragonelite 6y ago
  I think i saw the rust thread on twitter. It was about Ferrous system supporting this board with their course and cli tools.
  - JJJollyjim 6y ago
    Probably also with a peripheral access crate (type-safe register definitions) and and HAL integration.
- jamesmunns 6y ago
  So, there's language support for it, but it'll still be necessary to have driver support, ideally a whole support library in Rust. Most BLE or WiFi enabled microcontrollers have a binary blob for driving connectivity, or deeply C based code that can be a challenge to integrate idiomatically in Rust.
taneliv 6y ago
I don't speak Chinese, but this linked page seems to have some information on the power draw: https://www.ednchina.com/news/2020SONGSHANHU-3.html https://www.ednchina.com/news/2020SONGSHANHU-3.html . I don't know if that is just the WiFi component, or the whole SoC. You can also see two other kind of SoCs they contrast their BL602 offering against.

It will be great to have another cheap microcontroller in the space with much more advanced radios. Is there any info on power draw? I didn’t see that from the initial specs.

FullyFunctional 6y ago

It's right there on the page but it looks like he blocks copy and paste which is ridiculous: 0.5 uA (deep sleep), Wifi Rx: 18 mA. The first link (https://www.cnx-software.com/2020/10/12/hi3861-based-hispark-wifi-iot-development-board-supports-liteos-and-harmonyos/ https://www.cnx-software.com/2020/10/12/hi3861-based-hispark...) has more information. I'm puzzled about his Rust remark; if it's an RV32 then Rust already supports nostd on riscv32i-unknown-none-elf, riscv32imac-unknown-none-elf, and riscv32imc-unknown-none-elf.

deleted 6y ago
[deleted]
zokier 6y ago
If those figures are right, that would put this new chip as dramatically better than esp32, right?
- ohazi 6y ago
  Yes, the esp8266 and esp32 are power hogs and run quite warm, which is why you don't see them in battery powered gadgets very often. It'll be interesting to do real world measurements when this chip is available.
dragonelite 6y ago
I think i saw the rust thread on twitter. It was about Ferrous system supporting this board with their course and cli tools.
- JJJollyjim 6y ago
  Probably also with a peripheral access crate (type-safe register definitions) and and HAL integration.
jamesmunns 6y ago
So, there's language support for it, but it'll still be necessary to have driver support, ideally a whole support library in Rust. Most BLE or WiFi enabled microcontrollers have a binary blob for driving connectivity, or deeply C based code that can be a challenge to integrate idiomatically in Rust.

taneliv 6y ago

I don't speak Chinese, but this linked page seems to have some information on the power draw: https://www.ednchina.com/news/2020SONGSHANHU-3.html https://www.ednchina.com/news/2020SONGSHANHU-3.html . I don't know if that is just the WiFi component, or the whole SoC. You can also see two other kind of SoCs they contrast their BL602 offering against.