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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)2 C# e& u! T1 {) C) i" _2 v% s, U1 m* l+ {
- #include <ESP8266HTTPClient.h>
* [6 F& m X; ?, m# W - #include <ESP8266WiFi.h>5 J3 G# V# G. F# A; m
- #include <ESP8266WiFiMulti.h>2 [, t, O4 W: y1 X
- #include <ESP8266WebServer.h>, d) @# {3 \& h; F/ T! c) I4 r
- #include <arduino.h>
6 l1 _3 N) J& G2 V1 o - ESP8266WiFiMulti WiFiMulti;
) R! w2 y" z A% C$ K/ ?" o - ESP8266WebServer server(80);+ K( ]' S% ?6 d5 d3 u! |
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- d3 `- P4 ?( o3 w% s( P9 E
- ADC_MODE(ADC_VCC);
8 q* j, r) J1 V- }% w - void setup() {* N8 G b O; s
- Serial.begin(115200);) T/ h+ j- B& P8 B% C
- Serial.print("\r\n\n");
7 i6 K# m. M) X* T8 t) N& V1 K! R5 w - pinMode(2,OUTPUT);; C% J6 U0 T, B2 d4 @4 T
- // WIFI
7 V! q# I. O8 d - WiFi.mode(WIFI_STA);
B* A5 @& i' O' _) H8 `( a - WiFi.hostname("Sparkle");
! H/ ~* s' y! R" \( v% r' ^ - WiFiMulti.addAP("wifi ssid", "wifi password");/ R2 c! @0 N$ E. U! v) }
- int tryNum = 15;
8 ?% {8 w3 `: ?7 w* \ - Serial.print("Connect WiFi");: m$ D' K& K: r8 [+ w6 Y
- while (WiFiMulti.run() != WL_CONNECTED) {
% V/ w9 \* `% a4 t" f6 v" ~3 p% g - digitalWrite(2,0); N9 n/ K9 Q8 I
- delay(200);
3 N9 g' H. T( U) U. F$ V - digitalWrite(2,1);% t) B7 `' r; W$ k% Y! i* K
- delay(300);
6 S- ~) k* O. u4 p m* n - Serial.print(".");& |' j, Q: B* Y0 S0 U s( P: h6 t* I
- tryNum--;
; e5 `3 G- u! y0 D) d! I3 P( E - if (tryNum == 0) {
8 k' j2 q# V% h8 l' { - // 1min
2 |' c7 r8 ^+ x4 ] - // ESP.deepSleep(60e6);6 b; l) y3 u. A4 \" g! M3 w
- ESP.deepSleep(0);
7 {/ n7 I+ Z2 g( z8 [0 D - }, _; m6 v0 i: V, Q4 l ^
- }7 ]/ _7 I/ x. {# F# F; _+ h& ^
- Serial.print("\r\n");+ G6 r# v' _% u/ z6 T0 t; n
- digitalWrite(2,1);7 G" s7 T7 ~: K' P- y) m( s
- Serial.print("IP address : ");# Y T3 i' M+ w! V
- Serial.println(WiFi.localIP());4 y1 f4 K' S0 J b
- server.on("/", HTTP_GET, [](){
/ n# K, S% l: ?' x - server.sendHeader("Connection", "close");
" P- w: u. r% z5 I4 _) f - server.send(200, "text/html", serverIndex);
0 s% b. A. e$ y6 ~ - });7 }- K: I5 C! { V
- server.on("/update", HTTP_POST, [](){7 c* ~+ T T1 K' C5 U5 x
- server.sendHeader("Connection", "close");/ ?6 T3 V( b, |' }5 Q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' q$ e7 v" c- `) {3 g% u2 ]1 M - ESP.restart();
$ E4 C0 L- _9 g" C0 a# v) c- Z5 i - },[](){
# c- d; T# g D) b! O - HTTPUpload& upload = server.upload();
1 K& z- Y J9 a/ h9 P1 {2 T( ~ - if(upload.status == UPLOAD_FILE_START){& y) @- N0 o/ e! M$ d0 m0 }
- Serial.setDebugOutput(true);( C8 R. i3 f$ V3 j
- Serial.printf("Update: %s\n", upload.filename.c_str());
1 V+ q4 P" |) T( @/ j$ r - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( ^+ ?2 l+ q h T) M6 | - if(!Update.begin(maxSketchSpace)){
! R# W0 D5 U, M0 [9 R - Update.printError(Serial);/ n* A Z% J- j3 \4 v9 {" R4 [
- }
, L9 h& {. M+ ]8 L1 C - } else if(upload.status == UPLOAD_FILE_WRITE){
# E* q \7 W& V3 d c0 S: L8 | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! x b: k: _; d4 |( Z4 q4 ~
- Update.printError(Serial); ]+ O) g) y+ Q9 U; G' c; T. P( h
- }
6 `1 w* ^3 j) [4 d+ f - } else if(upload.status == UPLOAD_FILE_END){& N5 x" ^, o- P7 A; y" N
- if(Update.end(true)){
4 F: y; N. w" }& v - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: Y% w2 a, ]+ h6 }" p. Y
- } else {
3 c9 \/ f4 U; n3 Z1 m; {6 M4 e - Update.printError(Serial); z+ G; V7 Y- v( X7 X& f/ m. Y
- }
* {1 ]2 x. }$ i* u' M - Serial.setDebugOutput(false);
4 [% i4 l; t/ H - }* T3 f, G" z n$ @) _9 o$ t. A+ w
- yield();' f# [! p& F* a- U/ _' j/ ~8 W
- });/ F. M1 W( V- h2 @% s" D
-
7 N' r) b8 n) K8 ]# } - digitalWrite(2,0);
6 r& c/ h2 [6 X1 N1 G - mainAction();7 _$ }( I6 a5 I' d
- if (digitalRead(0)){. p( ^; L( G! w2 i3 L; w& }3 P9 R
- ESP.deepSleep(0);
1 {: F+ f0 U; ` - } else {
" T% b6 @4 T% r% }) l - server.begin();' X" l7 F. }$ K7 W0 ]! D
- }* E7 ]* m. p* W4 M0 U& y2 C
- }* I& R g; P: \) j
- void loop() {8 f( V) u) n- k/ v8 q
- server.handleClient();
`+ j1 Z3 k) l1 N1 \ - delay(1);
6 U$ T+ F* W: s7 G* j/ B9 ^ - }
L3 y) [6 o( Y - String doGet(String url){
# u# p# Z! B; C8 X - if ((WiFiMulti.run() == WL_CONNECTED)) {
/ g( o8 N3 b+ } - HTTPClient http;
! j* V z% W" [# t - Serial.println("[HTTP] begin...");0 T1 z3 S6 ^: D2 r6 Y# l
- if (url.startsWith("https")) {
: o$ ~4 d3 o5 Y; X/ o% `- T - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ _. x, ^6 V; H. D: y
- } else {4 ?4 @$ _% j2 Y/ k) _7 o
- http.begin(url);9 u$ W0 s- [( G' q6 G' |' I9 h3 k
- }3 N7 O0 _& G! ^* F
- Serial.println("[HTTP] GET...");9 @- a& e% \9 Z7 p' r7 a
- int httpCode = http.GET();- X$ d" q0 z2 R/ M" J
- if (httpCode > 0) {
' T4 |6 ^% S) H2 c! i# D6 n - Serial.printf("[HTTP] code: %d\n", httpCode);
4 i8 u! ]( B( j6 ^: m/ n+ Y - if (httpCode == HTTP_CODE_OK) {
5 H" G4 H7 |* V5 z# c* {2 p* W - String payload = http.getString();
& Z7 z# O* m1 b9 ^9 w - Serial.println(payload);
& ?1 C) t# W9 b) ?# w4 s+ g - Serial.print("\r\n"); i( o' ~5 Q3 |3 t- C& i6 y2 f
- return payload;
$ r+ d- H5 W5 a- E! S% x - }
# ]0 r1 }" b( s0 S z# j5 t - } else {
9 C3 C5 P4 Q% x- y1 k - Serial.printf("[HTTP] GET... failed, error: %s\n", Q+ [0 u9 a! x" B
- http.errorToString(httpCode).c_str());
0 V5 _* \2 v- A! C w0 M - }
F6 h$ y7 b9 ?% `. z# e0 s - http.end();# ?0 v& X+ N8 p& h
- return "";1 G1 m5 z" z8 \3 K
- }& `6 f% h* {$ Q, c
- }
! Q& N3 v/ ]8 p `, G N$ j: K - void mainAction() {' E5 R' M$ U4 b, J, I# I* M
- // 发送请求
/ `- C2 | R3 [: a0 m6 I - doGet("http://google.cn");
# I' e" z8 d$ ?( w9 A' T - }; v5 h' I/ D% J, K0 J7 y: |
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