Impressive: https://shop.pimoroni.com/products/tiny-2040
RP2040 based
264k RAM
8M flash
12 IO pins incl 4x12-bit ADC
/Very/ small
According to
https://www.tomshardware.com/uk/reviews/pimoroni-tiny-2040-review
"Essentially the Pimoroni Tiny 2040 is a reduced Raspberry Pi Pico and
as such all of the tutorials and guides for writing code for the Pico
will work with Tiny 2040."
On 25-02-2021 10:27, James Harris wrote:
Impressive: https://shop.pimoroni.com/products/tiny-2040
RP2040 based 264k RAM 8M flash 12 IO pins incl 4x12-bit ADC /Very/
small
According to
https://www.tomshardware.com/uk/reviews/pimoroni-tiny-2040-review
"Essentially the Pimoroni Tiny 2040 is a reduced Raspberry Pi Pico and
as such all of the tutorials and guides for writing code for the Pico
will work with Tiny 2040."
~2.5x the price, though. Is it worth it? I can think of:
+ small + reset button + usb-c + rgb led
- price - fewer gpio - no Vref - no buck-boost converter - components on
the bottom, so castellated pads sorta useless
you missed 8mb v 2 mb flash
On Thu, 25 Feb 2021 16:52:08 +0100, A. Dumas wrote:
+ small + reset button + usb-c + rgb led
- price - fewer gpio - no Vref - no buck-boost converter - components on
the bottom, so castellated pads sorta useless
you missed 8mb v 2 mb flash
alister <alister.ware@ntlworld.com> wrote:
On Thu, 25 Feb 2021 16:52:08 +0100, A. Dumas wrote:
+ small + reset button + usb-c + rgb led
- price - fewer gpio - no Vref - no buck-boost converter - components
on the bottom, so castellated pads sorta useless
you missed 8mb v 2 mb flash
Ah yes, that's a big plus.
I could do with something a bit physically smaller that the Pico, so the
Tiny looks good, but it needs to be able to handle at least two RC servos
so I need a couple of PWN outputs and two other lines for reading switch inputs. So, although at first glance this looks good, I can't see any indication that its still got PWM available on its remaining output
lines. The USB connector is fine for talking to a control box so I could
care less about RS232 capabilities.
There are 16 pwm channels on the rp2040 chip which can be connected to
any gpio. I'm sure that's still the same on the Tiny. So you have at
least 8 pwm pins, or 11 if you count the rgb led. Not sure if the 4 adc
pins can be reconfigured to be digital pwm, but I don't think so.
(The Tiny has one more adc pin than the Pico because it lacks the
buck-boost and hence the need to monitor the input voltage. Like (many/all/most?) small mcus, by the way, there is just one adc and the 4
pins are multiplexed.)
On Fri, 26 Feb 2021 05:17:11 +0000, A. Dumas wrote:
There are 16 pwm channels on the rp2040 chip which can be connected toThanks for the correction - I just looked at the pretty picture and, not >seeing PWM among all the other coloure blobs, thought it wasn't available.
any gpio. I'm sure that's still the same on the Tiny. So you have at
least 8 pwm pins, or 11 if you count the rgb led. Not sure if the 4 adc
pins can be reconfigured to be digital pwm, but I don't think so.
(The Tiny has one more adc pin than the Pico because it lacks theDoes this mean that, if I put 5v on pin 1 I'll see 3.3v on pin 3, but the >reverse doesn't happen?
buck-boost and hence the need to monitor the input voltage. Like
(many/all/most?) small mcus, by the way, there is just one adc and the 4
pins are multiplexed.)
Does this mean that, if I put 5v on pin 1 I'll see 3.3v on pin 3, but the reverse doesn't happen?
On Fri, 26 Feb 2021 14:32:14 -0000 (UTC)
Martin Gregorie <martin@mydomain.invalid> wrote:
On Fri, 26 Feb 2021 05:17:11 +0000, A. Dumas wrote:
There are 16 pwm channels on the rp2040 chip which can be connected toThanks for the correction - I just looked at the pretty picture and, not >>seeing PWM among all the other coloure blobs, thought it wasn't
any gpio. I'm sure that's still the same on the Tiny. So you have at
least 8 pwm pins, or 11 if you count the rgb led. Not sure if the 4
adc pins can be reconfigured to be digital pwm, but I don't think so.
available.
(The Tiny has one more adc pin than the Pico because it lacks theDoes this mean that, if I put 5v on pin 1 I'll see 3.3v on pin 3, but
buck-boost and hence the need to monitor the input voltage. Like
(many/all/most?) small mcus, by the way, there is just one adc and the
4 pins are multiplexed.)
the reverse doesn't happen?
That was the impression I got, doing a fairly rapid skim of the data.
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