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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst). p, ? {* R. s8 _
- #include <ESP8266HTTPClient.h>. I7 z3 L1 T, g& [
- #include <ESP8266WiFi.h>
, p" b" j; k& d4 K1 Q8 \6 W - #include <ESP8266WiFiMulti.h>; u% O+ V; k% l- I& }, S c0 P9 E
- #include <ESP8266WebServer.h>( o. x$ {' {3 G/ ~$ k( z6 p" u+ D
- #include <arduino.h>
1 Y! o3 P1 i# t6 X+ S. F* {+ f - ESP8266WiFiMulti WiFiMulti; Z1 E5 p- k/ R/ o" | I
- ESP8266WebServer server(80);8 x0 n- ?9 F* }6 s' E
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
8 @2 Y4 h7 N1 G) Q3 s- w1 m - ADC_MODE(ADC_VCC);
& R2 \8 v" m, Z- X7 d/ f# ^ - void setup() {5 q/ l6 T% p$ B2 T, V% h3 _6 f
- Serial.begin(115200);
+ f8 J8 C+ N% D5 V4 E& F2 R - Serial.print("\r\n\n");
2 }' t7 q7 u6 z% T8 v! S9 B H - pinMode(2,OUTPUT);$ T; Z" a' k7 K! N; C, k
- // WIFI$ ], E% i3 _/ i$ X
- WiFi.mode(WIFI_STA);
/ q! T% c/ d0 U. k; ?# w - WiFi.hostname("Sparkle");
7 J2 ?; C( _5 } p - WiFiMulti.addAP("wifi ssid", "wifi password");
* D% B9 ~; b: }9 W0 b - int tryNum = 15;
" Q6 X% g) O' p r8 }! n; L9 k+ y* M - Serial.print("Connect WiFi");9 p+ X2 d1 ^) s' } n( f0 t+ d2 |
- while (WiFiMulti.run() != WL_CONNECTED) {
& g. o/ t/ H# o; O" t6 ^ - digitalWrite(2,0);" x% b9 ^, R4 X# F4 H4 l
- delay(200);
8 F: p# Y* i. a7 O - digitalWrite(2,1);1 X1 D+ \' _ T' |4 i; m2 R7 h; M
- delay(300);# P4 h W$ a* T7 E0 O$ s3 }6 M
- Serial.print(".");
" x* t. |2 C6 U. s" M - tryNum--;% A9 u" ^) g( a! }
- if (tryNum == 0) {$ I' Y% T5 ^% Y9 ^5 r
- // 1min
6 Q4 ^3 U. m* O. R6 j - // ESP.deepSleep(60e6);# ?, q* W8 c& ` M* |7 Q7 f
- ESP.deepSleep(0);
, U# L7 e' x% I5 C) H& x - }
$ Q* Z# E8 @: R2 M - }# V3 P+ M4 Y( h. `: t
- Serial.print("\r\n");" K: u# T6 o7 P; n5 {
- digitalWrite(2,1);
3 h; d/ R3 K, c' J6 ]) t" M3 U2 v - Serial.print("IP address : ");# T2 n: h5 c' Q: ]
- Serial.println(WiFi.localIP());6 [) I8 k6 F: n7 k! B: C
- server.on("/", HTTP_GET, [](){; U# c8 h& j8 n5 d w
- server.sendHeader("Connection", "close");3 l7 O" J7 ? d' w
- server.send(200, "text/html", serverIndex);
: d: l+ J, X' D - });
8 G O5 \) {! g. a - server.on("/update", HTTP_POST, [](){
! Z( G2 M' K3 k V4 z' D - server.sendHeader("Connection", "close");6 w' [* }- y: i7 o0 ^8 R& I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");" C1 s6 s7 S! m" I$ \8 k
- ESP.restart();$ C( x6 Y: m% I: C" _2 @2 I
- },[](){
8 f. Y2 B* L; C8 x( n1 J - HTTPUpload& upload = server.upload();
0 {$ |6 [6 n6 G$ G8 @1 A" s - if(upload.status == UPLOAD_FILE_START){
8 D. S+ F8 M/ O5 O& P- }& A9 ~ - Serial.setDebugOutput(true);
* M5 W8 ~/ n! c. p5 l" i - Serial.printf("Update: %s\n", upload.filename.c_str());
7 B$ ?9 p- A/ N6 B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& L6 f% b9 ~/ U; {* N! q
- if(!Update.begin(maxSketchSpace)){
$ Y6 r$ y4 Q) v) H- p, B1 _8 U - Update.printError(Serial);
4 f J+ ~1 i% w - }
2 B: O: E6 d/ q& d. L2 V - } else if(upload.status == UPLOAD_FILE_WRITE){$ K; a# g& N' H" w
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 f1 f! l/ C8 ~; z! u' s9 c& U - Update.printError(Serial); W% ?- i/ S+ m6 U
- }- @, u6 ]3 R% m H
- } else if(upload.status == UPLOAD_FILE_END){1 ^" }5 L" h; J/ T+ w7 h
- if(Update.end(true)){0 z1 ^ t; t& T0 r& n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ \1 S1 v8 L$ F8 ^& d/ a# X - } else {5 b: c- l0 _+ c% v
- Update.printError(Serial);) ?! U) `0 c! c( d4 b
- }
; {+ o& i" H# M( |/ S: h/ X5 e - Serial.setDebugOutput(false);
' o0 Q: s4 Q. p5 a - }
1 y1 c- u. h2 \ - yield();# n0 y I9 i( X- J/ o
- });8 `4 ^; }. U" D4 e+ ^1 g7 m
-
1 i5 l4 ~/ y9 y5 v" u2 j/ [ - digitalWrite(2,0); v! M/ b. x, c) c# }; A& S
- mainAction();0 y$ r5 m0 I6 e6 l
- if (digitalRead(0)){& X& D. g1 z { Z
- ESP.deepSleep(0);) I4 y, L0 G, z1 O
- } else {
R$ Z5 W$ c0 L5 O3 _) u% B - server.begin();
2 x1 t0 V0 v; K! R3 X - }- f# `+ k K# K! u( b. q
- }
$ F! ?6 H Q* `4 X& O( E. _ - void loop() {' E, Y% Y2 k- I
- server.handleClient();% i* P L6 E1 }! V' G
- delay(1);
/ ^% m) ?- b/ t - }
, ]; Z, B. D0 P - String doGet(String url){
# \; e! q# K$ S8 f3 e# p, U* }, } - if ((WiFiMulti.run() == WL_CONNECTED)) {9 Q2 [; a# ]4 G5 _6 \" X
- HTTPClient http;
1 e3 l& j5 s9 F H; C# O9 k4 S - Serial.println("[HTTP] begin...");
, b( U# _/ `# u - if (url.startsWith("https")) {+ W7 M% R( t$ \+ p( ?. O
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' ^( Y/ i( [7 O/ s - } else {
- ?# c6 `- M" ]) T7 p0 e - http.begin(url);6 n- \ m, _; @* \
- }
" r9 k8 m" x7 C1 r# u - Serial.println("[HTTP] GET...");
- k) p' v) ]% B8 T: J - int httpCode = http.GET();$ U7 M# ~+ @$ i. X5 K
- if (httpCode > 0) {5 s7 q: j$ Q7 F# T3 y( \
- Serial.printf("[HTTP] code: %d\n", httpCode);+ c3 m9 q7 v N% d! ?
- if (httpCode == HTTP_CODE_OK) {/ H+ R! @( \$ M2 q" C, `) X
- String payload = http.getString();
! S2 x2 q/ T ?* i - Serial.println(payload);5 Q$ J3 {/ a2 |* R6 b8 H8 ]- i
- Serial.print("\r\n");
5 C' _! h4 m8 _! Y3 n+ D4 F/ b - return payload;
. c4 ]& m/ f0 Z* ]* v/ Z) } - }
+ p* }( w7 p( Q# Y5 T2 d9 p0 ^1 u, M - } else {9 o1 y9 j6 W& ~# y: i) t1 q
- Serial.printf("[HTTP] GET... failed, error: %s\n",. @) s+ t1 p" E+ B+ j- H
- http.errorToString(httpCode).c_str());" o. ^* a. Y6 W4 ^8 @
- }5 n( ~2 \% T( [# c/ P$ v2 ^# r) l6 ^8 i
- http.end();+ p$ n% V- s7 w) e% v$ F
- return "";
" g2 E5 ^' g" }' | - }
0 {4 `8 t. D+ a0 x( w7 k! t - }
4 W# ]0 a. v- X3 |2 E& B7 [! E" ?+ y: C - void mainAction() {
+ \9 W0 t; S- l' i6 J - // 发送请求! e" `7 x2 K$ r7 x6 P
- doGet("http://google.cn");
8 @/ t2 J. y# E9 l! _ - }5 v: p* m- O- Y
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