The holy grail of the BEEP(1400, 0.08) command: USB-HID
01-15-2022, 03:20 PM
Post: #21
 Mark Power Member Posts: 79 Joined: Dec 2013
RE: The holy grail of the BEEP(1400, 0.08) command: USB-HID
Ok, I think I have answered my own question on pins:

FT260 spec sheet says that DIO5 = SCL and DIO6 = SDA

UMFT260EV1A spec sheet says that IO0 = DIO5 and IO1 = DIO6

Therefore on the UMFT260EV1A:

IO0 = SCL
IO1 = SDA

Any chance you could supply the source code for reading the data from the BME680 that is shown in the jpgs?
01-15-2022, 03:36 PM
Post: #22
 gehakte_bits Junior Member Posts: 6 Joined: Dec 2021
RE: The holy grail of the BEEP(1400, 0.08) command: USB-HID
Those pins are correct, but they are in reference to ground, so connect at least ground too.

I cannot share the source code, but here is a good guide:
https://github.com/BoschSensortec/BME68x...tag/v4.4.6
using the floating point algos, cause that is what the Prime does very well.
(Although I see they upped it to v4.4.7)
08-11-2022, 08:35 PM (This post was last modified: 08-11-2022 08:37 PM by StephenG1CMZ.)
Post: #23
 StephenG1CMZ Senior Member Posts: 941 Joined: May 2015
RE: The holy grail of the BEEP(1400, 0.08) command: USB-HID
As an alternative to generating an actual Beep (tones or audio) :

How about some option to send print strings to the connectivity kit, which could then connect to some external voice synthesis system or generate tones, whilst the calculator itself remains mute for exams?
That could also be useful for accessibility.

Stephen Lewkowicz (G1CMZ)
09-15-2022, 03:54 PM
Post: #24
 muteki Junior Member Posts: 8 Joined: Jul 2022
RE: The holy grail of the BEEP(1400, 0.08) command: USB-HID
I thought the holy grail (on G1) would be soldering a piezo to the unused piezo pad and use an ACE exploit in firmware to call
Code:
Buzzer(1400, 80)

Jokes aside, one can also use a Raspberry Pi Pico connected via OTG. Not only it's only \$4, being available everywhere, you also got much more I/O options (SPI or even efficient bitbanging for weird sensors like DHT11). The sky (and also the 64KB/s hard limit of transfer rate unfortunately) is the limit.
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