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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)+ v* a: l' _' Q, h- j+ `2 j+ R/ X
- #include <ESP8266HTTPClient.h>
$ d; z l. G/ j# k O - #include <ESP8266WiFi.h>
% t4 ?8 {9 W. n - #include <ESP8266WiFiMulti.h># p: E2 I( R$ c9 s% U& P( w0 i1 M
- #include <ESP8266WebServer.h>
, }2 P: q; @. j# S" k+ j3 C* S - #include <arduino.h>
s) G# `) |) Y2 j- y/ c/ O - ESP8266WiFiMulti WiFiMulti;
0 M9 S0 v2 j- E7 _/ [% Y6 X$ k% [ N - ESP8266WebServer server(80);
& n( Z& X& i4 e& {0 c" g& Q' n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; \+ j7 Y' l N$ ?; j. [ - ADC_MODE(ADC_VCC);9 d. e" v% \% q1 T3 a& @
- void setup() {
" l% N) P6 v/ U9 h* `* Q0 y7 M - Serial.begin(115200); [5 P- i0 T# x/ c& B
- Serial.print("\r\n\n");
5 D9 z0 J0 d _2 B - pinMode(2,OUTPUT);
0 J& y: h7 ]/ ~6 B% A$ [; ? - // WIFI; V$ z, n; i6 Q; r- l8 ?: E4 G* Q
- WiFi.mode(WIFI_STA);; D' r& y7 I V% F4 I `
- WiFi.hostname("Sparkle");3 R% s8 T- O2 t' Q9 f. u
- WiFiMulti.addAP("wifi ssid", "wifi password");1 C( m; }% u3 A9 U
- int tryNum = 15;
. z9 V' z9 `. U, ] - Serial.print("Connect WiFi");) j, `% b0 u( G: O
- while (WiFiMulti.run() != WL_CONNECTED) {% U1 A8 w' |: }* ~
- digitalWrite(2,0);
: t6 `9 ^5 L' J# v$ Q% F - delay(200);
) \) `! x6 Q4 Q }/ O - digitalWrite(2,1); A; N1 e' O6 W0 ]( B6 V2 e0 ~ L
- delay(300);
A5 A( B0 z6 b2 V3 f' q - Serial.print(".");. m& y+ @; O" k G! a
- tryNum--;
/ ]" A. b& H# p2 ^7 j i - if (tryNum == 0) {5 M; S* G8 v1 l5 Q' P
- // 1min" s* M; @' z1 Q; i% `% F
- // ESP.deepSleep(60e6);# s; K" o( Q) P6 Z$ }
- ESP.deepSleep(0);
* q* L+ ?- W8 Z4 p5 o+ |- H - }
| K+ x6 a' r; T1 e/ U - }9 [) _. p' d6 F$ V
- Serial.print("\r\n");
0 C, b% p! [- j w - digitalWrite(2,1);
" _% I9 x; u+ K: m$ H" \ - Serial.print("IP address : ");" w8 Q5 F+ [) ]4 N' l9 ]
- Serial.println(WiFi.localIP());$ ^+ @9 {: M5 W7 ?# g7 a: ^) m1 T
- server.on("/", HTTP_GET, [](){
5 z4 p) t% k# H5 b0 v - server.sendHeader("Connection", "close");8 m% m& B" `! v9 |, f
- server.send(200, "text/html", serverIndex);8 y( K' i/ k% F( d, c" L
- });* m0 z9 w; U4 k' _9 D6 u4 w
- server.on("/update", HTTP_POST, [](){
8 a8 H8 E: x" U* K: I - server.sendHeader("Connection", "close");1 W6 @3 T* A8 K. ~$ X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ D2 j8 o" W7 w }! z7 [# W
- ESP.restart();
! w: \* F, ^; Z5 W; N - },[](){2 I5 t" T" U" D& X3 j
- HTTPUpload& upload = server.upload();
8 z' I+ |! m; K( ~ - if(upload.status == UPLOAD_FILE_START){# G& v- I" _) Y( A2 P' y
- Serial.setDebugOutput(true);3 c3 J# b- l0 R# e9 Y" F
- Serial.printf("Update: %s\n", upload.filename.c_str());9 D$ ? u; ^; j% {: c
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;, D! @# _' {, ?3 _5 ^
- if(!Update.begin(maxSketchSpace)){
8 [+ w- N' e j8 k& j0 r# w - Update.printError(Serial);
, y! g9 U* o9 g! L. V; V" |2 ^ - }
T! z9 ?+ M9 u1 M - } else if(upload.status == UPLOAD_FILE_WRITE){
+ y9 g; K! @$ r' }- z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 w3 t1 Y. \. Z) c: H
- Update.printError(Serial);
8 ?3 S' A) @" K* R - }
1 }! L5 S* Z' }) [ - } else if(upload.status == UPLOAD_FILE_END){
. s* x- J+ z; X+ Y9 d# B - if(Update.end(true)){2 Z: a3 z7 F5 a! m0 p9 ?
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- N @* \2 P1 U, } - } else {
$ M& `6 y4 N/ h0 V L - Update.printError(Serial);
/ [3 O" d8 _4 e6 v* _; p - }
) l" c% o# ^' c7 _! J5 f - Serial.setDebugOutput(false);
, d! |7 y) {$ r7 Y) {1 n - }- X7 b1 d, z! w# I: g" q
- yield();5 W5 `( [8 ^4 ]
- });
% w; y3 Z; w W! I' A% r& ?, n - : v1 j# d' _) E2 c( t% ^0 |5 F
- digitalWrite(2,0);
, C: o8 W6 h2 ~8 `, g1 z - mainAction();
, k2 y$ u3 E* h9 _2 [0 h# W - if (digitalRead(0)){
* Y4 h: b L# y) y( S9 ` - ESP.deepSleep(0);3 ~3 S2 E/ `; _8 J
- } else {% b6 V, T+ L" k0 I9 a9 V- J
- server.begin();
& q) D+ b( V5 g- o- w I - }0 m: c1 S! ] Y$ g5 T
- }( p) t, J& i# n q7 y
- void loop() {0 l4 A6 P$ x' o) s
- server.handleClient();/ x0 m1 t/ i" B9 q% D
- delay(1);
) i; x, Y3 U6 m) j& L2 h - }! D# p; c+ d+ M4 I$ \' B9 V/ O5 c
- String doGet(String url){
1 x$ ]( Q5 f9 h! G, H5 f - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ Q) e# T: |4 P* v Q6 w) K; c e - HTTPClient http;$ ]5 \8 F+ Z* W9 D
- Serial.println("[HTTP] begin...");
: V! w1 Q8 W7 a/ C3 e - if (url.startsWith("https")) {
3 _% N) n# X0 P1 s* \+ D% g, o - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% B6 i! b' B# \, I5 p
- } else {( R- S0 Y! [2 a5 _* Y+ h
- http.begin(url);" h' f8 g) Y& d9 S
- }' s* G- H( k" L( K
- Serial.println("[HTTP] GET...");
7 `* K. ~: r( ^. |0 p( @' D - int httpCode = http.GET();
" Y( A6 C& t0 ?4 n7 _" }9 M - if (httpCode > 0) {, ]9 Z3 a7 g& T; ? R, R9 @2 p6 q
- Serial.printf("[HTTP] code: %d\n", httpCode);" E6 ^6 o. F/ B$ O# N4 M
- if (httpCode == HTTP_CODE_OK) {" z' r" M9 ^' G' M: G
- String payload = http.getString();" H9 o) y _" |
- Serial.println(payload);
8 g/ ^6 t+ e( W# \& U. b - Serial.print("\r\n");/ v" q. J, G2 v3 r
- return payload;+ q+ A, D1 B0 z K
- }
8 O! ? Q6 J! L- b - } else {
+ K) Z' B5 }( r9 Y- a' s( L - Serial.printf("[HTTP] GET... failed, error: %s\n",
2 R! a# g3 X0 x3 S- \" ^4 F- ?$ z - http.errorToString(httpCode).c_str());
/ W/ ?+ ]& A8 S& s& @) ] - }
; n5 R& M! F' W% d1 e5 P - http.end();/ A+ b/ E* `. H4 S: V
- return "";
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- }0 Z) U: i' j' B8 K$ u
- void mainAction() {
7 d/ }2 _2 [7 _& U+ N - // 发送请求
% } a1 v; r, @ - doGet("http://google.cn");
/ x8 O9 `( ]- k& S: }8 g0 \, | - }" y. U; h6 r- v
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