一直以來都很想擁有一隻工程筆，可是它實在是太貴了。BUT 最近在書局找到一隻20元以內的類●工程筆 Tempo MP-250，覺得還不錯。
筆身可以轉轉轉，紀錄現在用的筆心是哪種型號的
- Aug 02 Sat 2014 15:31
[文具]Tempo MP-250工程筆
- Jul 31 Thu 2014 00:49
[Arduino]透過I2C，同時控制二個不同ID的介面
影片中的LCD螢幕和WII的左手搖桿都是利用I2C介面控制的，
這裡一樣是參考Cooper Maa大大的文章，
WII nunchuck: http://coopermaa2nd.blogspot.tw/2012/08/wii-nunchuk-arduino.html
- Jul 27 Sun 2014 00:45
Ryu REST API 不同Match Field的下法 Part 2
我已經儘全力了，最右邊還是很大一格，不會自己換行，大家可以用複製的，就可以看到完整的語法了。
| Index | Field | Ryu Rest API 語法 |
| 20 | OXM_OF_ICMPV4_TYPE |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"32766","match":{"eth_type":2048,"ip_proto":1,"icmpv4_type":1}, "actions":[{"type":"OUTPUT","port":2}]}' http://127.0.0.1:8080/stats/flowentry/add |
| 21 | OXM_OF_ICMPV4_CODE |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"62766","match":{"eth_type":2048,"ip_proto":1,"icmpv4_code":1}, "actions":[{"type":"OUTPUT","port":30}]}' http://127.0.0.1:8080/stats/flowentry/add |
| 22 | OXM_OF_ARP_OP |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"22766","match":{"eth_type":0x0806,"arp_op":1}, "actions":[{"type":"OUTPUT","port":30}]}' http://127.0.0.1:8080/stats/flowentry/add |
- Jul 25 Fri 2014 21:52
Ryu REST API 不同Match Field的下法 Part 1
| Index | Field | Ryu Rest API 語法 |
| 1 | OXM_OF_IN_PORT | ~# curl -X POST -d '{"dpid":"0000000000000001", "priority":"32766","match":{"in_port":2}, "actions":[{"type":"OUTPUT","port":1}]}' http://127.0.0.1:8080/stats/flowentry/add |
| 2 | OXM_OF_IN_PHY_PORT | N/A |
| 3 | OXM_OF_METADATA |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"32766","match":{"metadata":"1234567890"}, "actions":[{"type":"OUTPUT","port":1}]}' http://127.0.0.1:8080/stats/flowentry/add |
| 4 | OXM_OF_ETH_DST |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"32766","match":{"eth_dst":"00:11:22:33:44:55"}, "actions":[{"type":"OUTPUT","port":1}]}' http://127.0.0.1:8080/stats/flowentry/add |
| 5 | OXM_OF_ETH_SRC |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"32766","match":{"eth_src":"00:11:22:33:44:55"}, "actions":[{"type":"OUTPUT","port":1}]}' http://127.0.0.1:8080/stats/flowentry/add |
| 6 | OXM_OF_ETH_TYPE |
curl -X POST -d '{"dpid":"0000000000000001", "priority":"32766","match":{"eth_type":0x86dd}, "actions":[{"type":"OUTPUT","port":1}]}' http://127.0.0.1:8080/stats/flowentry/add |
- Jul 23 Wed 2014 13:20
[洛比 Robi 改造]設定伺服馬達旋轉的角度，set up the Maximum CW/CCW angle
- Jul 17 Thu 2014 21:18
OpenFlow 1.3 縮寫解釋
在OpenFlow的Spec.裡，常會提到一些縮寫字，但是並沒有一個名詞解釋的總表，所以我自己作了一點，提供給大家作參考
| Name | Type |
| OFPFC_* | OpenFlow Protocol Flow Control |
| OFPPC_* | OpenFlow Protocol Port (role) Control |
| OFPET_* | OpenFlow Protocol Error Type |
| OFPBMC_* | OpenFlow Protocol Bad Match Code |
| OFPBAC_* | OpenFlow Protocol Bad Action Code |
| OFPFMC_* | OpenFlow Protocol Flow Modification Code |
| OFPGC_* | OpenFlow Protocol Group Command |
| OFPPS_* | OpenFlow Protocol Port Status |
| OFPPC_* | OpenFlow Protocol Port Config |
| OFPMC_* | OpenFlow Protocol Meter Command |
| OFPGMFC_* | OpenFlow Protocol Group Modification Failed Code |
| OFPMMFC_* | OpenFlow Protocol Meter Modification Failed Code |
| OFPT_* | OpenFlow Protocol Type |
| OFPP_* | OpenFlow Protocol Port |
| OFPPF_ | OpenFlow Protocol Port Feature |
| OFPQT_* | OpenFlow Protocol Queue Property(??) |
| OFPQ_* | OpenFlow Protocol Queue (??) |
| OFPXMC_* | OpenFlow Protocol Extensible Match ClassID |
| OFPXMT_OFB_* | OpenFlow Protocol Extensible Match Type_ OpenFlow Basic |
| OFPIEH_* | OpenFlow Protocol IPv6 Extension Header |
| OFPIT_* | OpenFlow Protocol Insturction Type |
| OFPAT_* | OpenFlow Protocol Action Type |
| OFPCML_* | OpenFlow Protocol Controller Maximum Length |
| OFPC_* | OpenFlow Protocol Capacity |
| OFPTT_* | OpenFlow Protocol Table Type |
| OFPFF_* | OpenFlow Protocol Flow Flag |
| OFPMF_* | OpenFlow Protocol Meter Flag |
| OFPMBT_* | OpenFlow Protocol Meter Band Type |
| OFPBRC_* | OpenFlow Protocol Bad Request Code |
| OFPMP_* | OpenFlow Protocol MultiPart |
| OFPTFPT_* | OpenFlow Protocol Table Feature Property Type |
| OFPR_* | OpenFlow Protocol Reason (ofp_packet_in_reason) |
| OFPPR_* | OpenFlow Protocol Port Reason (ofp_port_reason) |
| OFPRR_* | OpenFlow Protocol Flow Remove Reason |
- Jul 15 Tue 2014 20:59
[洛比 Robi 改造]設定伺服馬達旋轉的力道，set up the maximum torque
