diff options
| author | Dmitry Butyugin <dmbutyugin@google.com> | 2021-03-15 22:50:56 +0100 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2021-03-20 13:24:43 -0400 |
| commit | 8a3a32058f2a4ec599d3542d154a6eecbd1b3b85 (patch) | |
| tree | 97eed079da398d1226f26d05b1f179372e6eade7 | |
| parent | 2d8945dc1c5a799476c10bf54d7eb1bca3a0fd36 (diff) | |
| download | kutter-8a3a32058f2a4ec599d3542d154a6eecbd1b3b85.tar.gz kutter-8a3a32058f2a4ec599d3542d154a6eecbd1b3b85.tar.xz kutter-8a3a32058f2a4ec599d3542d154a6eecbd1b3b85.zip | |
docs: Added a note about different ADLX345 PCB designs
Signed-off-by: Dmitry Butyugin <dmbutyugin@google.com>
| -rw-r--r-- | docs/Measuring_Resonances.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/Measuring_Resonances.md b/docs/Measuring_Resonances.md index e346a178..481f5cea 100644 --- a/docs/Measuring_Resonances.md +++ b/docs/Measuring_Resonances.md @@ -8,6 +8,12 @@ Note that using ADXL345 requires some soldering and crimping. ADXL345 can be connected to a Raspberry Pi directly, or to an SPI interface of an MCU board (it needs to be reasonably fast). +When sourcing ADLX345, be aware that there is a variety of different PCB +board designs and different clones of them. Make sure that the board supports +SPI mode (small number of boards appear to be hard-configured for I2C by +pulling SDO to GND), and, if it is going to be connected to a 5V printer MCU, +that it has a voltage regulator and a level shifter. + Installation instructions =========================== |