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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)
. I0 j$ i# A2 C4 ~7 N- D- #include <ESP8266HTTPClient.h>
" I0 t) j: h; @3 ~ - #include <ESP8266WiFi.h>* o- }! C# L& Z* I$ u% s/ g5 m
- #include <ESP8266WiFiMulti.h>
9 G5 a2 s, w5 O - #include <ESP8266WebServer.h>8 L0 |8 w, C2 [' `; ~
- #include <arduino.h>
8 x0 \, ~! t6 {% k7 @ - ESP8266WiFiMulti WiFiMulti;! V! _5 O& y6 ?% M( a8 z+ U
- ESP8266WebServer server(80);
6 J) ^# ^% I: w$ D, v; | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* ?! l& Y/ V* P- {1 B - ADC_MODE(ADC_VCC);
, V8 k. j+ X" _, k" \ f! M - void setup() {' e* l$ p. F1 G0 K3 B
- Serial.begin(115200);
m m0 i: _+ d6 s, P - Serial.print("\r\n\n");
9 \0 M8 d' i& \- f) g/ w - pinMode(2,OUTPUT);
$ d4 E6 a( p" d5 E5 k+ ? - // WIFI
8 d/ k) _# |# o7 h. r @6 R( E$ }$ d& L - WiFi.mode(WIFI_STA);
/ r9 h& y) f- P- r" w& S, f - WiFi.hostname("Sparkle");
: i4 d; j. |( B' } h) |& M# ]7 ] - WiFiMulti.addAP("wifi ssid", "wifi password");$ r: C) O" w! n- U. l9 C; |' Y$ t
- int tryNum = 15;4 Q7 B" [# w7 G, {& {
- Serial.print("Connect WiFi");3 `+ O' U0 X4 S! G# C+ g! O
- while (WiFiMulti.run() != WL_CONNECTED) {
+ }/ ~% P x& [* E8 g a - digitalWrite(2,0);
) l' ~* m6 J0 I: N5 ]0 i - delay(200);
% |3 A/ {# a! N. [' @% p - digitalWrite(2,1);
' X8 [/ ?$ K# ~2 ~8 a - delay(300);
. b9 O0 s- W6 Y% N, L3 u& a0 l4 e - Serial.print(".");
( T; \5 a" r- q7 {$ g - tryNum--;6 q, G2 A" H" o- Z$ h8 r
- if (tryNum == 0) {
& D3 G1 h: q5 D9 Y" L - // 1min6 k7 ^7 V! {8 U# Q
- // ESP.deepSleep(60e6);1 M5 Q' q f. N6 o3 s" @* B
- ESP.deepSleep(0);
/ P( w* x E- q1 i - }) y. O% P& S2 k0 N, R
- }
; V. b3 e: f9 Z6 U: l - Serial.print("\r\n");8 V c* Y- }. Z) y v
- digitalWrite(2,1);( ]; L; m% }7 T& \* w. U
- Serial.print("IP address : ");
5 e+ b+ h' T, `" s# p - Serial.println(WiFi.localIP());7 Y6 A/ _& j, l. a( _7 q& F
- server.on("/", HTTP_GET, [](){
8 Y# C3 k8 @7 n2 f& h% `: | - server.sendHeader("Connection", "close");& I+ L, p* Y9 A6 Z1 M
- server.send(200, "text/html", serverIndex);
+ D# i7 q3 ~% c - });
2 ]8 s9 S4 D* o& _ - server.on("/update", HTTP_POST, [](){* g4 F" E/ q* j9 b+ Z+ t
- server.sendHeader("Connection", "close");. V" k& D H" a, Q+ G9 b1 a
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 z/ I3 w' I) D8 ?4 u3 X ], C+ W- W4 B
- ESP.restart();
. M8 D1 v- a: \: d - },[](){
& r" t2 ~# v6 f. }( R4 Y - HTTPUpload& upload = server.upload();. o$ ]+ V# z& Y% d& R" ]
- if(upload.status == UPLOAD_FILE_START){
5 g5 U, t7 E6 G, a) Q" q( Q, u3 J - Serial.setDebugOutput(true);& ^1 }( G; x& k1 L ?' _. Z
- Serial.printf("Update: %s\n", upload.filename.c_str());
* b9 S- a j+ @9 z0 h - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ j. a+ {* b. o% e& o - if(!Update.begin(maxSketchSpace)){
3 ^' X. W3 h& W; Y" L9 N( `% `/ T, ] - Update.printError(Serial);
$ c% r7 L4 t' ]0 m: f& p - }
* a9 y2 G. j8 d; i, m1 n3 P - } else if(upload.status == UPLOAD_FILE_WRITE){
2 E; o0 s4 T* }; ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) k- t6 A1 v8 I% ^" H - Update.printError(Serial);0 h T& k9 K( j% s" X( S% m
- }
% _0 P7 @: F! u* w0 t2 K9 Q, d - } else if(upload.status == UPLOAD_FILE_END){
; C; x2 S" i7 s& x8 J - if(Update.end(true)){7 Q$ H" e) W- T: g- ^# H
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" O9 Q- D9 w% o9 Z( d6 \( y4 T - } else {
% U3 B% o1 Y3 i* m - Update.printError(Serial);5 U( t0 b2 r; Z( x; S* o' n7 S
- }) k8 x, [$ ?0 h
- Serial.setDebugOutput(false);
$ F I% l$ a# P- b. [ - }$ ?# T0 }8 H% y
- yield();
% Z# H1 g; ^3 U5 _ - });
* \* J8 Q! v/ u' L! J# w -
p, q2 B4 q7 [" S - digitalWrite(2,0);' l$ D* T" b+ ?. a6 M# H
- mainAction();
; i& J2 {' I5 B1 u1 y% ` - if (digitalRead(0)){) W u* \; o- P# J0 t; r
- ESP.deepSleep(0);! |# V( m. `# x- a# F
- } else {% i0 ^) D8 ?* k' j
- server.begin();9 P& R. v( \- b4 _8 }
- }
2 t7 {; l2 u" s+ P6 ] - }
: {9 m6 H2 n: }1 H S3 B/ w* T - void loop() {
4 v. Y9 }: f3 ^ - server.handleClient();
4 i) x: D0 q1 ~& E% O8 L - delay(1);! \8 P* K2 g7 B' @3 K8 O* J
- }
: J' v& m, x; D% l! m - String doGet(String url){6 y$ w2 ?5 l+ x; B9 | D
- if ((WiFiMulti.run() == WL_CONNECTED)) {
4 S ~8 o1 C4 v9 ~ - HTTPClient http;; A0 r& U* Q5 [& A) |/ p
- Serial.println("[HTTP] begin...");' f9 p6 R4 C; D2 g1 @4 f2 e; j& P3 _
- if (url.startsWith("https")) {5 v+ b M+ j' [0 [& P3 u) q, I. g
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. J) X9 C/ x; [1 g) U( S; x+ {& F - } else {2 E% Y% V; Z. G( o
- http.begin(url);* B3 R$ @' O9 |# u
- }
/ k$ }' @8 c/ |. G) U5 ~ n4 P - Serial.println("[HTTP] GET...");7 P. D/ D; v/ d+ c
- int httpCode = http.GET();
+ e. {5 R7 [( |/ ` - if (httpCode > 0) {& h* f9 @- z8 w' T: c
- Serial.printf("[HTTP] code: %d\n", httpCode);' h$ A& V+ `, Z% |, H% k
- if (httpCode == HTTP_CODE_OK) {
! }+ R1 d3 N4 S/ c - String payload = http.getString();
* ~1 F0 H: Q1 g" S - Serial.println(payload);& l" O. C/ \ e, y
- Serial.print("\r\n");/ k2 U+ o4 N( S! h
- return payload;9 G: U/ d, c4 v+ } \
- }0 n; x6 j0 b D, K1 S
- } else {
/ v* C$ x% R, }( P8 r( u+ @' n - Serial.printf("[HTTP] GET... failed, error: %s\n",
: A7 v4 h1 t! ^) H - http.errorToString(httpCode).c_str());
# U3 A$ \: X: D5 A) v5 A, ? - }
2 m& e: X* d/ y" l - http.end();
* G! t/ W' a1 l" ^& d1 E3 ~ s4 P - return "";
0 W; _' O& ^; S - }$ w# _$ X7 Q. ^: d: b1 {9 n
- }
* ?2 ~* R6 ]- I8 P: p - void mainAction() {
+ [+ _) T# V5 s' D. m2 Z - // 发送请求
" C. k, D' M0 u: \# ?7 r! N - doGet("http://google.cn");, a+ `2 c8 W e4 E& Q
- }2 }; E! }( N Q3 v
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