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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)
% g3 n1 I1 _; G/ a A3 E2 E8 c- #include <ESP8266HTTPClient.h>% e; X& Q7 W# Z( ?; z7 Y" {
- #include <ESP8266WiFi.h>0 R: z5 j0 F n# { I- k9 o
- #include <ESP8266WiFiMulti.h>/ \# u3 b3 m# s2 p4 U2 ]
- #include <ESP8266WebServer.h>
+ h/ V! K* l$ K" h - #include <arduino.h>
# O/ s4 C! v/ N) f# g3 [ - ESP8266WiFiMulti WiFiMulti;
' o& S$ W! w* z3 P+ U K9 r - ESP8266WebServer server(80);
: _# a, g- y; ^2 j$ e/ i% u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ w5 H+ N8 K1 ]* }2 l. G- @ - ADC_MODE(ADC_VCC);" }% i, g: m% u, n, U4 O* w' K
- void setup() {5 L" t- j2 z# y) E# g* e" S t
- Serial.begin(115200);. M* D- u8 k3 d8 k
- Serial.print("\r\n\n");
u5 q; l$ G- U/ v# ]. S - pinMode(2,OUTPUT);
& s4 Q/ R4 W3 {9 Y - // WIFI3 v& k$ w. Q: B
- WiFi.mode(WIFI_STA);& J0 M4 S6 \% x, m v, W/ Y: n
- WiFi.hostname("Sparkle");
$ l N6 U. w: x" N - WiFiMulti.addAP("wifi ssid", "wifi password");1 `; s/ V; G5 x! z
- int tryNum = 15;' _9 b8 X9 m% s0 g; d ^+ @
- Serial.print("Connect WiFi");
) E$ H- c# G4 ~+ V# y+ z% P( Z1 A - while (WiFiMulti.run() != WL_CONNECTED) {' q5 i# j2 B6 O: F6 v! u8 @0 L
- digitalWrite(2,0);9 S1 ?4 u5 J$ \5 D
- delay(200);
) p6 H" N0 I8 O - digitalWrite(2,1);# \; M! n2 W z4 \. ?/ L9 P
- delay(300);; }$ K0 C) j) Q
- Serial.print(".");
: v* R2 ~. b' H - tryNum--; |! K8 t6 W) I. \+ C7 m+ s1 t
- if (tryNum == 0) {: P0 ?+ E6 ~' Y8 o
- // 1min0 Z# W) L' p- h& x! Y9 L' l
- // ESP.deepSleep(60e6);; q' k2 O8 Q) S2 m
- ESP.deepSleep(0);, ?9 R/ H# V) Y% { Q
- }& |% R4 q6 r8 L B, Y& y7 A" d
- }' Z# g0 c# b3 E) Q; r
- Serial.print("\r\n");
3 G$ h% n/ s; E' V; y- q - digitalWrite(2,1);, O" s8 _( m7 N3 f& A4 ]6 Z3 U% `) v
- Serial.print("IP address : ");
+ @: f8 f# i, t' X- t) r7 @ - Serial.println(WiFi.localIP());) v* ^4 |/ i: i: s/ P8 C, b
- server.on("/", HTTP_GET, [](){' U1 B; }! m$ p- g. y8 {6 v
- server.sendHeader("Connection", "close");: {# Q# z& Z- ^; p
- server.send(200, "text/html", serverIndex);
4 y! j- v: f& [0 z, g" T% p& g, o - });
- y! f: K5 n7 v. R - server.on("/update", HTTP_POST, [](){
9 u8 g# J) J( f0 k5 P* c5 ~ - server.sendHeader("Connection", "close");
1 `1 U9 g# r! G3 K/ r - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, [9 m" u3 q! y m. E1 i
- ESP.restart();
! [" E1 O3 F7 r9 c - },[](){. k) Z/ C3 `9 }6 C4 v2 e
- HTTPUpload& upload = server.upload();; C& M3 D7 c" @
- if(upload.status == UPLOAD_FILE_START){
. V+ h$ e9 y1 i) {' M; [1 P% k, z3 _ - Serial.setDebugOutput(true);
! h% K3 U; I8 \ - Serial.printf("Update: %s\n", upload.filename.c_str());
9 T5 `% c: ^$ V$ B; o4 \: t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 g6 c+ ^0 Q: I8 Z
- if(!Update.begin(maxSketchSpace)){$ c5 @ ` G8 Q y% ?: m8 S4 H% K
- Update.printError(Serial);; X6 r: A h _- D: o+ w$ i- N
- }
( V$ u4 m0 k) I& o - } else if(upload.status == UPLOAD_FILE_WRITE){
; c) K9 B' ?8 i+ D- D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 _& s3 v- e& T3 D! K9 I, j& b - Update.printError(Serial);
. J% [/ e4 ~6 W$ B+ a9 e0 ]8 [ - }
1 i. \1 P! V8 C( N7 C! j1 p - } else if(upload.status == UPLOAD_FILE_END){/ }& m7 K! E/ ^ ^" d
- if(Update.end(true)){! D% g* S: J/ C; f8 n8 W3 ]# t+ ?( O
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);/ P7 _/ h9 Q" P1 Y0 e+ v! g
- } else {8 z. h' w- \/ k0 ^+ \; V0 d. \% y: F
- Update.printError(Serial);
! Q# B+ m, g6 E* N - }
* F7 q H6 [* D M; G - Serial.setDebugOutput(false);& N: l* e: a- V8 G7 {2 {
- }9 c+ T: Z, F/ G0 j) D) I9 z
- yield();
o2 o: ]3 D; C6 O3 N7 t - });' o. K, W6 Q" _2 j) }& b
- ! x& w% ]' }$ h# J2 f
- digitalWrite(2,0);
& J* q0 ~7 ?% W - mainAction();
' c: c& l$ h- I6 J - if (digitalRead(0)){$ I. @2 n& P4 r) C
- ESP.deepSleep(0);# C8 w+ n, `* s8 M* z# h
- } else {$ u2 k5 a1 q$ p- z8 _ L
- server.begin();
7 Q: a: x _0 e* e - }! U: k/ b8 V( O
- }
: r, f. Y8 v( J% i" L - void loop() {9 b) S" i5 ^1 g+ h, g- y
- server.handleClient();
) j2 P/ n( M4 t5 f5 k8 H( D1 } - delay(1);9 d4 Z" y& M+ c; Y, O
- }/ _' e" L4 V7 R
- String doGet(String url){; m8 P% k8 a: D* b
- if ((WiFiMulti.run() == WL_CONNECTED)) {" |- a9 E" S0 @& A2 N' d3 ?
- HTTPClient http;: y6 G9 S8 T6 m/ h( U+ t" H8 a! Y
- Serial.println("[HTTP] begin...");
: M- z9 z: ^8 K* F* B - if (url.startsWith("https")) {6 J. N- a% [$ m. i7 f2 e w8 E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- v+ t- W" D+ O e" N7 p4 G" H
- } else {
& q' j8 \; I2 H5 G- A6 j - http.begin(url);
" R3 q2 V) v3 g; S6 G% } - }
' e3 @- l$ L/ X! Z - Serial.println("[HTTP] GET...");
: B x7 e# e/ ?4 M - int httpCode = http.GET();# G, d# E% j# i J" e, C
- if (httpCode > 0) {% {4 V( S, \4 t/ t5 W. v
- Serial.printf("[HTTP] code: %d\n", httpCode);" Z3 M1 L' Z7 R4 K3 w+ z7 q9 L1 F# q
- if (httpCode == HTTP_CODE_OK) {
: l0 x" Q `2 v* K* f1 \ - String payload = http.getString();; L8 ] C$ I/ c( p; x9 _1 S! @3 N( h( u
- Serial.println(payload);2 ]( j+ h* f( T8 b
- Serial.print("\r\n");- O$ P$ G. }0 z7 V g6 O# ~
- return payload;" y' o- X! y# b( a
- }; Q, s% W. L, E5 W1 |+ a( L
- } else { I) s# b- L7 g0 @! a; L
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 p$ L/ A3 Y ]# `) \* I. q - http.errorToString(httpCode).c_str());
3 S" C3 P4 @0 E9 E3 n - }
% O. s5 L: K' v' B# b - http.end();0 r" C) Y2 A# V5 X3 P
- return "";
+ e, b4 S0 K% L9 Z3 t0 }: [ - }
! ~: N( M% m. |1 v9 l - }
4 h" y& j9 M. e6 k- J5 ^ - void mainAction() {! e4 F. m6 A; ?' F
- // 发送请求4 C2 X& K: ]8 s9 i1 b4 n
- doGet("http://google.cn");- K. ~) B7 o' `( k% W# {* X
- }: m! a( E' M: {3 B' T( ?+ J* k
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