{"action":"opened","issue":{"url":"https://api.github.com/repos/intel-iot-devkit/upm/issues/234","labels_url":"https://api.github.com/repos/intel-iot-devkit/upm/issues/234/labels{/name}","comments_url":"https://api.github.com/repos/intel-iot-devkit/upm/issues/234/comments","events_url":"https://api.github.com/repos/intel-iot-devkit/upm/issues/234/events","html_url":"https://github.com/intel-iot-devkit/upm/issues/234","id":101462769,"number":234,"title":"Unable to use MPR121 driver with Intel Edison","user":{"login":"stewart","id":489142,"avatar_url":"https://avatars.githubusercontent.com/u/489142?v=3","gravatar_id":"","url":"https://api.github.com/users/stewart","html_url":"https://github.com/stewart","followers_url":"https://api.github.com/users/stewart/followers","following_url":"https://api.github.com/users/stewart/following{/other_user}","gists_url":"https://api.github.com/users/stewart/gists{/gist_id}","starred_url":"https://api.github.com/users/stewart/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stewart/subscriptions","organizations_url":"https://api.github.com/users/stewart/orgs","repos_url":"https://api.github.com/users/stewart/repos","events_url":"https://api.github.com/users/stewart/events{/privacy}","received_events_url":"https://api.github.com/users/stewart/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-17T16:46:02Z","updated_at":"2015-08-17T16:46:02Z","closed_at":null,"body":"I'm attempting to communicate with the MPR121 via the UPM node module.\r\n\r\nI'm using the Arduino breakout board, and am getting power from the wall.\r\n\r\nI've been using some other I2C modules fine (grove base kit display, etc) but can't get the MPR121 sensor to work - here's my test code:\r\n\r\n```javascript\r\nvar mpr121 = require(\"jsupm_mpr121\");\r\n\r\nvar touch = new mpr121.MPR121(mpr121.MPR121_I2C_BUS, mpr121.MPR121_DEFAULT_I2C_ADDR);\r\n\r\ntouch.configAN3944();\r\n// always logs \"configAN3944: 101: I2C write failed.\" and returns false\r\n```\r\n\r\nI've tried all I2C ports on the Grove Shield, to no avail. Similarly, the [provided example](https://github.com/intel-iot-devkit/upm/blob/master/examples/javascript/mpr121.js) fails with the same error."}}