# Haptics drivers from TI - DRV2605 **URL:** \ **Category:** Integrated Circuits (ICs)\ **Tags:** texas-instruments, power-management-pmic\ **Created:** [April 1, 2020, 12:55pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027 "2020-04-01T12:55:49Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 1, 2020, 12:55pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/1 "2020-04-01T12:55:49Z")
Hi All, I’m trying to use DRV2605 from TI without any luck. Used datasht circuit and chked with Adafruit and Sparkfun breakouts. Get no response from either Arduino Nano sketches! need some expert advice, programming is not my strong point ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [April 1, 2020, 1:24pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/2 "2020-04-01T13:24:24Z")
Hi @paul20, which DRV2605 break-out board are you utilizing for your project? Adafruit has a nice example here, showing how to test with the basic example: > **[Adafruit DRV2605L Haptic Controller Breakout](https://learn.adafruit.com/adafruit-drv2605-haptic-controller-breakout/arduino-code)** > > The DRV2605L is a tiny motor controller that is specifically designed for vibration-disc and other haptic feedback motors. Using I2C you can string multiple built-in vibration effects for high quality tactile feedback. Can you share your work in progress schematic, or even a picture of your wiring setup? That could help diagnose your issue. Regards, ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 1, 2020, 1:37pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/3 "2020-04-01T13:37:00Z")
Hi Robert, I was unaware of the boards when I ordered DRV8601 and 2605 from YKWho. The Cct I’m using is same as both Sparkfun and Adafruit, power and i2c. Uploaded ada and spark sketches on Nano, but get no action. Ive prepped 2x DRV8601 and 4x DRV2605 on purpose made pcb for breadboard. Im now stuck rgds, Paul ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 1, 2020, 1:39pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/4 "2020-04-01T13:39:31Z")
I don’t knot how to include drawings etc. ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [April 1, 2020, 1:49pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/5 "2020-04-01T13:49:28Z")
@paul20, you can attache most \*.pdf or images by clicking in: ![upload_files](https://global.discourse-cdn.com/digikey/original/2X/d/d8c824a58a23879c63851e3ed42e3abd548fca2f.png) Regards, ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 1, 2020, 1:50pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/6 "2020-04-01T13:50:41Z")
Thanks, will do! ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 8:07am UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/7 "2020-04-02T08:07:07Z")
![image](https://global.discourse-cdn.com/digikey/original/2X/c/cce4a2008270548cba2453e472bff5fc1fd95ce5.png) [DRV2605 Cct.pdf](https://forum.digikey.com/uploads/short-url/qxE2AA8MKjaWcfcSx6fNdUI3aYF.pdf) (56.0 KB) This is what I’m using ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 8:42am UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/8 "2020-04-02T08:42:47Z")
All C’s 1uF, All R’s 10K I want to use smd ATtiny85 in place of the Nano to drive the 2605, as the PCB must be no bigger than 12 mm X 20 mm. The (now disused) ERM (555) board is 12 mm X 11 mm. This is a medical project. ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [April 2, 2020, 1:10pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/9 "2020-04-02T13:10:36Z")
@paul20, which AVR, do you have physically connected to the DVR2605 today? The Arduino Nano usually is an ATmega328 (with a real dedicated i2c port). While the ATtiny85 has a fake i2c (thru the USI peripheral), the ATtiny family need external pull-up’s when using the i2c mode (the internal AVR i/o pull-up can not be used on this device family with USI/I2C mode…)… If your design is using the ATtiny85 today, you need to look at ATTinyCore, (if your using Arduino)… > **[SpenceKonde/ATTinyCore](https://github.com/SpenceKonde/ATTinyCore)** > > Arduino core for ATtiny 1634, 828, x313, x4, x41, x5, x61, x7 and x8 - SpenceKonde/ATTinyCore Here are some migration notes: > Regards, ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 1:33pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/10 "2020-04-02T13:33:55Z")
Thanks for that Robert and Spence. Right now I want to do the easiest path to getting theDRV to work - and that is why I chose the Nano route initially. So lets stay with the Nano, Guys. Later the conversion to ATtiny will actually be simpler. Regards ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 2:23pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/11 "2020-04-02T14:23:37Z")
Hi Robert, I made a mistake above! Apologies - afterall I am 81! Got some progress. Loaded the Adafruit sketch agn and the serial monitor shows the “DRV test” and the Nano stops there, I unplug the i2c wires and the program happily runs on the monitor. Reset starts it over. Seems the DRV is not accepting the info. I also did a scan of the i2c addresses on the system and intermittently comes up with 0x5A, which is correct. I used the scanner in IDE examples, but why intermittently? At least some progress ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [April 2, 2020, 2:51pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/12 "2020-04-02T14:51:35Z")
HI Paul, no worries! This smells like a bus lockup, do you have any equipment to watch the SDA line (to see if the Adruino is holding the SDA line low…)? But let’s also quickly verify the i2c lines didn’t get reversed. Switching out the 10K resistors for 4.7K resistors might be an option, but let’s save that as a last resort… Regards, ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 2:55pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/13 "2020-04-02T14:55:04Z")
It would seem the DRV is not (able or bothering to) send the ACK to the Nano to get out of STANDBY mode. Is the Library Wire.h up to date? Or is there another version to be used? ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 2:57pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/14 "2020-04-02T14:57:57Z")
I have a scope. I noticed before that the SDA line stays low with +ve going data. ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [April 2, 2020, 2:58pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/15 "2020-04-02T14:58:52Z")
The Adafruit library seems pretty up to date: [https://github.com/adafruit/Adafruit\_DRV2605\_Library/commits/master](https://github.com/adafruit/Adafruit_DRV2605_Library/commits/master) ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 3:00pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/16 "2020-04-02T15:00:09Z")
Ignore my last, I’ll check again ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 2, 2020, 4:03pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/17 "2020-04-02T16:03:56Z")
The bus lines are hi with the signalling going low. Ok abt the library. ---
**Author:** ![RobertCNelson](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/robertcnelson/32/12_2.png) [@RobertCNelson](https://forum.digikey.com/u/RobertCNelson)\ **Post date:** [April 4, 2020, 9:11pm UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/18 "2020-04-04T21:11:38Z")
Hi @paul20, just a quick update on this, i was able to get some parts from work for comparsion. Adafruit DRV2605L: [https://www.digikey.com/product-detail/en/adafruit-industries-llc/2305/1528-1346-ND/5356831](https://www.digikey.com/product-detail/en/adafruit-industries-llc/2305/1528-1346-ND/5356831) Adafruit Vibration ERM MTR: [https://www.digikey.com/product-detail/en/adafruit-industries-llc/1201/1528-1177-ND/5353637](https://www.digikey.com/product-detail/en/adafruit-industries-llc/1201/1528-1177-ND/5353637) Arduino Nano (mega328p): [https://www.digikey.com/product-detail/en/arduino/A000005/1050-1001-ND/2638989](https://www.digikey.com/product-detail/en/arduino/A000005/1050-1001-ND/2638989) Using the Adafruit DRV2605 Library with the Basic example works fine. ![arduino_1.8.12_drv2605_basic](https://global.discourse-cdn.com/digikey/original/2X/7/79c12cda31e23871a4e8b14cb75c98dc610cd8b0.png) ![drv2605_mega328p](https://global.discourse-cdn.com/digikey/original/2X/0/09cd35fcf13b347d8730ec1a880dd015f2c2a6b4.png) ![drv2605_sensor](https://global.discourse-cdn.com/digikey/original/2X/8/88b4a3e52a3e0a2d25651282289800e0643d62c3.png) Regards, ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 5, 2020, 9:37am UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/19 "2020-04-05T09:37:42Z")
I rebuilt the circuit on a copperless “vero” board (for wire-wrap) soldering every wire-wrap joint. The unit does the same thing - on power-up or reset, the internal (pin13) LED flashes once (as it should), the TX LED gives one very half-hearted flash, the serial monitor prints “DRV test”, then nothing. Supply voltage 4.8 from Nano 5v pin, bypassed with 1uF at DRV2605 and 10uF at feed-point. Pullup R =10K on bus lines. ---
**Author:** ![paul20](https://avatars.discourse-cdn.com/v4/letter/p/e495f1/32.png) [@paul20](https://forum.digikey.com/u/paul20)\ **Post date:** [April 5, 2020, 9:47am UTC](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027/20 "2020-04-05T09:47:35Z")
It did not work either. Then I replaced the DRV chip, and connected an ERM in place of LRA. Uploaded pgm and the vibrator ran without stopping. Suddenly everything died, Nano and motor. Voltage measured 1.3. Cut away DRV and volts returned to 4.9. DRV chip has popped, but wasn’t hot! We need to alter program to drive an **LRA**!!! [Next page](https://forum.digikey.com/t/haptics-drivers-from-ti-drv2605/6027.md?page=2)