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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)
. u/ s; z( B' n. }$ B3 e9 J- #include <ESP8266HTTPClient.h>
9 }2 O0 _9 j2 P8 R' Q' I - #include <ESP8266WiFi.h>
, K' r4 U: q/ M+ W. l3 K - #include <ESP8266WiFiMulti.h>+ D" v- T! ~2 g% s* ^
- #include <ESP8266WebServer.h> j" K; v( P# }3 P! S/ E; m
- #include <arduino.h>
: C+ v. D0 s8 r- D- v) `$ f6 m: T7 \- d - ESP8266WiFiMulti WiFiMulti;1 {& _6 Q4 O+ b
- ESP8266WebServer server(80);
# r8 j8 J8 M6 _# e3 K) _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# a# E/ `# e4 ^: b/ t0 d - ADC_MODE(ADC_VCC);
`& l4 z' N; b* K4 L - void setup() {4 I! i/ w' }/ X; s5 e
- Serial.begin(115200);, a$ N: p" y* ~. |
- Serial.print("\r\n\n");( u4 A* e3 _/ G& K5 m
- pinMode(2,OUTPUT);
/ ?# x# I* q) e& M. g9 Y/ P - // WIFI
. e+ p8 T( m# F - WiFi.mode(WIFI_STA);
& I2 k" U- \! C$ c8 C - WiFi.hostname("Sparkle");
# d1 J; D* w7 J ^) K; R5 D - WiFiMulti.addAP("wifi ssid", "wifi password");1 |2 W0 X6 H0 E. G
- int tryNum = 15;$ M( B/ F2 w! W
- Serial.print("Connect WiFi");5 k/ l3 N/ Y: A
- while (WiFiMulti.run() != WL_CONNECTED) {
4 x% r/ [8 j9 E G7 ~: ^) ? - digitalWrite(2,0);9 ~* _( `* g# O; V# _1 Y1 `
- delay(200);) y- L& T# L6 W9 r5 a
- digitalWrite(2,1);
1 W6 g) r- O( ]# c" R3 b/ `$ v& | - delay(300);+ F: ]( ~# ^4 D+ ^9 r
- Serial.print(".");
, C+ ` G0 i1 x. ^ - tryNum--;: }$ i2 @9 ?7 s5 j7 B
- if (tryNum == 0) {
3 W& P: @1 K& {9 J) x5 E9 w - // 1min
( H* G5 ~% T" Q4 z - // ESP.deepSleep(60e6);
- O3 f% a/ r8 b. X - ESP.deepSleep(0);* D2 ~1 W4 P2 a% S
- }
" }" ?! ]. x3 l: f6 Z; Z - }" J. b; r5 `; N8 M* j8 W
- Serial.print("\r\n");
: N0 r/ n/ d1 q6 R5 t5 f - digitalWrite(2,1);
! t# p7 k) M4 B$ q) [3 C - Serial.print("IP address : ");8 K; _( H& r6 L3 j* l/ Q- f& _
- Serial.println(WiFi.localIP());4 z4 ?0 Y- h, I6 n O9 y, B% }* o
- server.on("/", HTTP_GET, [](){6 a8 O: v- i q2 B
- server.sendHeader("Connection", "close");
5 D6 C' X, }1 A$ q- x2 X. \ - server.send(200, "text/html", serverIndex);
3 {9 U7 z# K! b, Q- N+ ]; P - });1 H9 ]7 R$ x2 p x
- server.on("/update", HTTP_POST, [](){' G; c" i4 o( H$ u6 f* X7 A( R/ K
- server.sendHeader("Connection", "close");9 l2 ?5 R( i/ \& C! B
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 j. k7 h0 J; m0 |6 i+ N& M
- ESP.restart();
2 P9 m7 b! I. a& M. A8 T# l - },[](){
7 R1 [ `2 Q) J/ [) R/ v - HTTPUpload& upload = server.upload();" V& S. S0 Y) {5 D! a
- if(upload.status == UPLOAD_FILE_START){4 N( l9 t* m$ U' _# D& R
- Serial.setDebugOutput(true);
: e8 B7 ~# m0 X - Serial.printf("Update: %s\n", upload.filename.c_str());
8 s% ~1 u1 Y/ G0 a - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 r( G/ ~: Z5 e. L/ e - if(!Update.begin(maxSketchSpace)){
3 @& D' c! @5 I' n# t& M1 p - Update.printError(Serial);9 Z v. S5 D& R9 k8 r8 n
- }+ W! K/ ]3 N, @* _
- } else if(upload.status == UPLOAD_FILE_WRITE){5 r, K" K& F( }7 {1 @/ ^% G q. }
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ z1 t4 ?- R5 v- E$ w9 x6 H, @
- Update.printError(Serial);
5 [' h. a. j4 Z9 A3 } - }
- L( s) v, P* L% `2 a8 ] - } else if(upload.status == UPLOAD_FILE_END){& ^3 ~, L0 N9 x9 s2 r/ S
- if(Update.end(true)){* y2 y0 V! W. P+ p0 U/ Y( h
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ D2 C: ]# k/ h* z - } else {! X) c2 |! g: U" t0 `5 V
- Update.printError(Serial); a9 U' D" v" t
- }
w8 P5 ]! F% m. U6 H - Serial.setDebugOutput(false);# ?8 Z9 T7 V+ V, r$ {8 R
- }
. B" f1 y6 b3 b9 o) j, S: s - yield();+ w4 e4 s$ p# H/ B, @) N: Y
- });
: d. n# l' [# m( |9 i - 3 x" o: K' c9 a$ o
- digitalWrite(2,0);
0 ]3 K# D+ f6 C* W! [, U- [ - mainAction();
' q" t& k( _+ W/ K& n - if (digitalRead(0)){
- L+ b8 n5 F; S - ESP.deepSleep(0); L, W# n8 V y' d0 O; h
- } else {
3 \ R* }' `3 M0 @ c$ r5 D - server.begin();
% d! L1 w3 D" r: w - }+ N# p) x, C( v+ }" c
- }3 v' e1 m; L7 f+ k$ u
- void loop() {
+ j" x" z$ A. o, q" s - server.handleClient();' J& J0 m8 c& k" Y7 e
- delay(1);
; \4 w, e Q% {" [# j0 A' ? - }
" Z8 E* l! K) g - String doGet(String url){ p' j# G6 s7 E; p/ \- o0 @
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 p" u, f3 p+ Y+ P& e
- HTTPClient http;1 X# u+ l5 _5 Y/ f. w5 j
- Serial.println("[HTTP] begin...");
: r6 |# c- Y% E9 C J. U6 d - if (url.startsWith("https")) {
8 s/ y0 v8 l+ d( Y, I! l9 D - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 Y( N: Q. \" r
- } else {
9 f% z$ g& h1 Q" x2 O [ - http.begin(url);+ i$ n" @# v' z" h2 k9 N
- }% ?' M$ \' X, J, g. c7 H( C6 H5 p
- Serial.println("[HTTP] GET...");
' Q4 p6 g3 e+ z - int httpCode = http.GET();* `- U) x) T/ E o. p
- if (httpCode > 0) {
0 R6 @; m- P6 N2 B( e! Q, Q - Serial.printf("[HTTP] code: %d\n", httpCode);
" O8 \( T: ]6 Q& ]+ k$ f3 q K8 f$ M - if (httpCode == HTTP_CODE_OK) {
y3 Z e+ O% ^# M1 j - String payload = http.getString();; f( m, M0 x5 @+ i
- Serial.println(payload);
7 ]% [2 d- e: F W - Serial.print("\r\n");& f ~) ]/ G. A1 G* y5 T
- return payload;% G* h0 U; F0 Z7 R: x
- }
7 b; z# P- A% d - } else {) @: k. F# j! l+ w. w8 n
- Serial.printf("[HTTP] GET... failed, error: %s\n",. y( X5 ?. d+ B& M! ^! V1 P
- http.errorToString(httpCode).c_str());; U0 K" Q* ^7 C1 S
- }
% U! f# e9 o2 a4 h; m k - http.end();8 N3 c* P# v- s) j
- return "";
5 f' N1 M4 ] e# Z4 y) c. Q - }! ^1 c6 T6 o* t' M$ c
- }
6 k9 @- i. E* T- I - void mainAction() {3 ^2 D/ Z0 Q8 a7 X; |( ^$ J
- // 发送请求
3 L/ H" J, c/ l2 j% e - doGet("http://google.cn");
X1 `! X$ S: }) M - }; G& x+ @% \& K# s
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