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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)
3 O2 }) e$ h$ |2 S. m* S- #include <ESP8266HTTPClient.h>' P/ l6 L; p* U' `
- #include <ESP8266WiFi.h>
0 O: k+ h, [3 I7 V- O9 L - #include <ESP8266WiFiMulti.h>: T( `% [3 ~+ w6 g K* n: I5 @* `
- #include <ESP8266WebServer.h>& j* J+ _7 L1 Y
- #include <arduino.h>
6 A0 R. V: y$ s+ T! {1 J; Y$ W - ESP8266WiFiMulti WiFiMulti;" _3 h9 x5 k: p1 w, P) d
- ESP8266WebServer server(80);
0 i' h1 ^, w; U3 C# O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( s) G! q! V" a3 b- } - ADC_MODE(ADC_VCC);) j- j9 K7 |5 X( l6 v( g) n
- void setup() {, r- E' s7 X( b0 {4 P
- Serial.begin(115200);
7 x1 s0 H0 U0 [4 i - Serial.print("\r\n\n");+ b% D, @: E: O- F+ {
- pinMode(2,OUTPUT);
* }( n1 m8 d$ |4 W; v - // WIFI
7 e9 N/ f2 y* I1 y8 Z$ Z - WiFi.mode(WIFI_STA);6 v& P8 l M& [. l# s
- WiFi.hostname("Sparkle");
7 g Y8 T5 M/ t! O5 \ - WiFiMulti.addAP("wifi ssid", "wifi password");2 l) d6 f" A: O/ X0 v
- int tryNum = 15;8 l6 O# E' D$ [; @; q" l
- Serial.print("Connect WiFi");( w* l& {! w$ L# p5 w4 [5 _) y
- while (WiFiMulti.run() != WL_CONNECTED) {
* Z8 t9 d1 H7 _5 L0 ]6 e ~7 V - digitalWrite(2,0);
) [" W* e5 y$ _! ^% s9 m - delay(200);. |# q# z* f: Z1 G- S, \
- digitalWrite(2,1);2 \4 E( a) l$ Z0 F+ o7 A
- delay(300);
& b6 h7 [3 D% U( u& i - Serial.print(".");& o9 G# e, W; V5 |
- tryNum--;
0 q0 V7 h9 W8 M - if (tryNum == 0) {
& Z- M. K+ D7 d& s- Q/ e& R8 w - // 1min* Q1 v! @' x: k- z* B _! X; W
- // ESP.deepSleep(60e6);7 q- P. g) @/ O8 w
- ESP.deepSleep(0);
* Y) q9 x. P; d5 J& g8 H# L7 B - }7 x; v" Z" ^" p
- }
( `9 ^8 v: I5 M: p) F2 { - Serial.print("\r\n");
" e& c* i1 n! x, r3 W7 X: X; H9 X7 g - digitalWrite(2,1);7 r7 _( }9 f6 W7 T3 z9 m8 |
- Serial.print("IP address : ");6 C( f4 ~; l5 }3 B0 G
- Serial.println(WiFi.localIP());
6 }# o5 v* V9 f+ z- j0 u* f1 c9 v - server.on("/", HTTP_GET, [](){7 Y) m w# m, b. w) x
- server.sendHeader("Connection", "close");
$ u! o! }7 F* D& M9 {3 f - server.send(200, "text/html", serverIndex);6 l" i' u% y v2 ~/ ]: Q% E. _1 ?- f
- });+ o# I6 C- ~/ V5 P! p
- server.on("/update", HTTP_POST, [](){+ J/ x; I; n7 B# z
- server.sendHeader("Connection", "close");; T4 c5 w! X2 m& c( y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 q( i2 H ^* G: F9 ^* D
- ESP.restart();5 g; G: X& ]# ^: Z3 B
- },[](){$ w% ^; Q9 s: d( {: Y$ o1 o
- HTTPUpload& upload = server.upload();' E8 G' }$ ^' G% U q1 [( \- @
- if(upload.status == UPLOAD_FILE_START){9 q J! U% a0 O7 q
- Serial.setDebugOutput(true);. ~$ j* f5 _9 p. [
- Serial.printf("Update: %s\n", upload.filename.c_str());
4 m8 _2 ^, \& C3 } q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. r8 {" @$ _+ C/ ^- w* R( k2 y) c5 O
- if(!Update.begin(maxSketchSpace)){
0 W' h! t- A; i$ W' r( }% t% I - Update.printError(Serial);, M: H y; u; T8 Y" D0 r; T
- }
& H, [$ }$ P- ^2 a7 O - } else if(upload.status == UPLOAD_FILE_WRITE){
+ L6 R# X( Q& i2 f* x - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" P) M* U; p+ z# p - Update.printError(Serial);* b( M2 s; G$ ^
- }& y5 G% I$ m: q; R- F* r
- } else if(upload.status == UPLOAD_FILE_END){0 c- W; M, m1 p/ a" ^1 ]7 i# q
- if(Update.end(true)){
# c& M" |; X; P - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 @1 q$ N7 G0 y( w' W7 v+ h! k7 M5 K - } else {% Q! ?! D1 S- B- {% d
- Update.printError(Serial);+ S! B: J @( X# e
- }# Z) d" v8 I' O+ B0 H2 h! n& T
- Serial.setDebugOutput(false);) A6 r4 c9 y4 M- ^
- }2 B! T9 a+ i7 h# T
- yield();( J% F; v0 w) h9 L
- });
* n! Q! n/ R2 X -
4 Y) b( D8 D7 @' g( V - digitalWrite(2,0);
7 c( W1 l5 O% o1 N+ t+ ~ - mainAction();
4 `& j) ]( g' \+ h* f# M- g8 t* z - if (digitalRead(0)){) h, t6 a; _* w; I! t( m
- ESP.deepSleep(0);* p' R% B, {% ]8 W* `8 b
- } else {
# Y" X: l0 a% _. I: M+ H; q - server.begin();
! v# w+ m! A! ^1 J k7 D: V; M - }
6 D2 e. y& ]) g: I( F - }3 ]! D. n6 e; ]( i% C
- void loop() {$ ]- I* f6 @6 Y- y1 Y! U, S* V
- server.handleClient();
3 [- @7 A [6 M F$ t - delay(1);* ~5 [3 }" `! T8 } W
- }% M& ?5 P) I+ Z4 s: u5 n/ A; W
- String doGet(String url){' Y4 I5 {2 [2 d- h. G
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ Y' O6 |' g& ` - HTTPClient http;
- l3 I+ J$ D C0 r* j: h4 W! n - Serial.println("[HTTP] begin...");! X4 _- S% x# M# L
- if (url.startsWith("https")) {" u) V1 d* f/ P: Z0 P, w, ?2 H! F
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 m f$ @$ b! F: {( _3 Q4 ]
- } else {; K) v( {$ U5 n# e
- http.begin(url);% D3 R* C$ L6 m9 `( \- S2 @7 D
- }
1 c, z% P, U3 V" T) X6 J% e) N - Serial.println("[HTTP] GET...");! o( D: u8 M2 e) ?3 t2 g9 }% a4 o
- int httpCode = http.GET();
; u$ R v! t0 O - if (httpCode > 0) {1 a4 h" p9 u! P! ^( Q( K
- Serial.printf("[HTTP] code: %d\n", httpCode);/ B, o- i/ G* ]" t3 O o
- if (httpCode == HTTP_CODE_OK) {' `; d# P/ k( |4 b
- String payload = http.getString();) N* V, W5 ~# c
- Serial.println(payload);
7 u) c. v7 X3 R b2 Y2 O& i% N - Serial.print("\r\n");
& x% ^2 c% G/ _) R9 F - return payload;0 V* a6 H* {9 t' w% w# k* O; m5 g
- }: E! H& @' D+ p$ ^9 L. a
- } else {2 }) o7 D; Z$ j0 L* N" z) y; ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",- z0 C p: A/ d. C
- http.errorToString(httpCode).c_str());" j3 G7 `- J6 ? ?8 m
- }- ^% f% S9 i% K* v/ b% J
- http.end();) K% Q# l) ^9 \: s! |
- return "";
L/ ], V! [3 d - }
2 r3 i: M/ \! ^- w: m0 z8 E2 } - }) j( q& J$ c4 U! e. ]& J, u
- void mainAction() {' S* b* A8 m$ G# Q/ |( s' W: q0 B0 @
- // 发送请求9 h: q' B; N- j
- doGet("http://google.cn");& A2 ^/ B2 x" ?4 B( h7 }
- }. C/ u/ F7 `# y/ D
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