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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* ?, g- D: L. E
- #include <ESP8266HTTPClient.h>
1 b, ~) D7 W7 M, h) c" _, w# d. c - #include <ESP8266WiFi.h>
' ?9 O/ p* {" a% r3 d1 A - #include <ESP8266WiFiMulti.h>7 e+ I4 l( i8 F \
- #include <ESP8266WebServer.h>& @" l X8 s8 ^! f. S1 N
- #include <arduino.h>
3 f3 i. J- Q" [6 o2 B) M - ESP8266WiFiMulti WiFiMulti;
9 f- B, }9 j; j( R8 T4 p) X - ESP8266WebServer server(80);
x( Z2 B i6 ^9 h. N/ Q1 [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; U ]; l' ?8 z j$ D
- ADC_MODE(ADC_VCC);0 r; S2 ?3 o+ M: T/ x, z
- void setup() {
3 f6 h- ^+ H7 z/ t9 V - Serial.begin(115200);
" ~5 k4 Z7 Z9 f9 d5 r - Serial.print("\r\n\n");9 [; S# e% z; T, R$ F
- pinMode(2,OUTPUT);
1 C9 A6 C5 K0 b1 C' C" u4 H - // WIFI
( b8 M$ A: k; h. S- y. f% a - WiFi.mode(WIFI_STA);
$ g1 E5 Y3 G+ u) K, a. y9 k - WiFi.hostname("Sparkle");% C3 u$ H1 o3 a8 c% x3 I% r
- WiFiMulti.addAP("wifi ssid", "wifi password");
2 M- o n4 `, W - int tryNum = 15;
1 g3 x5 P4 [; i+ d - Serial.print("Connect WiFi");5 L3 O7 E1 h8 \) G
- while (WiFiMulti.run() != WL_CONNECTED) {& t) n7 K" Z" W8 b; k# K$ O
- digitalWrite(2,0);
6 P' A0 R5 Z6 U6 q& l+ U7 C - delay(200);* h# Z% u* E/ L; I! ]2 g" S
- digitalWrite(2,1);
9 R5 W. d( Z3 e- ~3 W% X+ Z - delay(300); E0 g( k. O; M: ]3 Z6 ]# Q0 s* w
- Serial.print(".");$ e" k; }6 |' C6 Q
- tryNum--;3 O* i' ]: R1 X3 M3 u' ?* R
- if (tryNum == 0) {- \: V1 x' N5 {% _+ K6 y
- // 1min' n c! |+ `: T- I& e7 c% a. K
- // ESP.deepSleep(60e6);
& f) P8 q9 h: z. g8 X) \0 t - ESP.deepSleep(0);
# ]2 D/ B' t2 t$ s. U - }( W* c2 U( j7 a' d7 ~! A& u
- }
- ? {9 G/ e0 s5 _ - Serial.print("\r\n");
7 z6 y( |6 O4 T- V) M0 k/ L - digitalWrite(2,1);
9 x. S! a: `" j) }9 A - Serial.print("IP address : ");; }% g) l: O2 y( `7 J1 q) M' N
- Serial.println(WiFi.localIP());% `. n% {# [# N b! D4 y$ A1 M
- server.on("/", HTTP_GET, [](){
( W3 [* j! Q: V - server.sendHeader("Connection", "close");, |' n1 @2 j# E c" i% H
- server.send(200, "text/html", serverIndex);
8 d; j( q+ D2 `, w, G2 |% U - });
- ]" Z9 ]9 b/ U - server.on("/update", HTTP_POST, [](){
5 W1 j) K- w/ U - server.sendHeader("Connection", "close");
" h0 p1 \* J$ G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' B$ l1 s# C- l" F% B0 y - ESP.restart();
0 O" s! l( o* x- X% G2 U - },[](){
5 u6 g1 ?' l- q' E - HTTPUpload& upload = server.upload();
3 ^( l# z1 k: I) M9 y - if(upload.status == UPLOAD_FILE_START){) D4 D* {# O5 \( Q: j: g$ R
- Serial.setDebugOutput(true);
i, k" p9 ^4 F - Serial.printf("Update: %s\n", upload.filename.c_str()); W- ?5 [) d( t5 e+ x! A4 ?
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% G6 [1 O$ [3 J3 ~
- if(!Update.begin(maxSketchSpace)){
1 E& y3 O% y4 O% M- f% Q$ ] - Update.printError(Serial);
$ z9 Z2 j) P$ S; ~5 o% |7 Z( A& V - }
4 D' c" P; ~. t' ^( e% O5 A - } else if(upload.status == UPLOAD_FILE_WRITE){4 D1 E% G" ]* p" A- J# ~4 S" t
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* P8 \+ `+ @' k, t' m - Update.printError(Serial);- e1 Z7 Q3 v; m& @$ s* q
- }
$ k) M+ m2 P6 ] - } else if(upload.status == UPLOAD_FILE_END){
5 i# a: m$ ?0 X' r k+ H - if(Update.end(true)){
1 l. i- [/ L. r' h0 g9 y' ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' T& C" |+ s+ \/ A- d" \( X5 G' } - } else {* a N+ Z6 Z. w8 b$ n' K8 u
- Update.printError(Serial);
, V6 X: \) G2 |9 J; J - }/ w1 Y/ W; R; ` g) o5 h* b- I4 L& g
- Serial.setDebugOutput(false);
: W) j; x/ E$ Q! v& \ - }
- t: ~. L8 R7 c: J' V j& A7 \ - yield();
/ i+ S% U7 s' i$ T. ]6 P - });" Y* n! R+ z, q) B3 K
- , S" X( V$ C( S) d" K# K
- digitalWrite(2,0);
; g3 w1 p- j% G - mainAction();
8 c7 p+ o* `8 H - if (digitalRead(0)){" W. k! y1 F# W3 d5 h8 s* ~
- ESP.deepSleep(0);8 h( B: S7 q% S4 i# a, H
- } else {
* b% A/ @* m8 Y* a - server.begin();8 F& m7 g0 @$ `! [6 s
- }
q. l5 e) z9 E6 u - }
D9 u5 J* x% c4 ] - void loop() {- \3 ^; n/ ]! V& y- F
- server.handleClient();
# A. C9 v' j; [* M: v - delay(1);; h* ^5 C4 C! }
- }; z3 S! | K+ q- Y$ J& e2 c' b) J
- String doGet(String url){# Q9 N" n0 A, ]: b* U# ]6 _! [
- if ((WiFiMulti.run() == WL_CONNECTED)) {$ [/ E/ }. L3 N4 T- L6 R, y
- HTTPClient http;* m3 X9 y, G( Y1 O0 H% M" z" H- H
- Serial.println("[HTTP] begin...");
2 }7 l- c) M5 _! b$ L# D- d6 ^ - if (url.startsWith("https")) {/ \$ @4 F0 i0 [0 N
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% m% m8 O2 F6 f - } else { t5 D( Q4 n F0 G$ o+ C
- http.begin(url);' Y& I* \. Z6 V, T: K1 ]" j
- }
- Q3 t8 \0 [* q) D7 v6 o& O - Serial.println("[HTTP] GET...");
8 E! P- \$ h6 d E$ R5 s - int httpCode = http.GET();
3 m' u/ ]" p. j+ z: H - if (httpCode > 0) {+ V7 B8 v( P% o1 J, ?) P
- Serial.printf("[HTTP] code: %d\n", httpCode);
% W/ y9 f& _1 D, x$ T- U( _6 g% O - if (httpCode == HTTP_CODE_OK) {3 G v. x! k0 A+ M
- String payload = http.getString();
/ k, N/ f1 A' [2 s4 H! v - Serial.println(payload);
0 i- ^8 A( |% s3 | - Serial.print("\r\n");. w/ L: t5 E ]/ c( V2 x: ~% H
- return payload;7 y7 ], ~& w, w- n
- }
3 |) b- M4 Z5 Q5 @ - } else {
$ O0 {) f! n) T - Serial.printf("[HTTP] GET... failed, error: %s\n",. c. Z; \. _* L; v& T! s& K
- http.errorToString(httpCode).c_str());) S5 ^5 o# @0 I! Z% T2 P
- }+ k* C, p0 U2 n9 Y. O: _9 q
- http.end();
" T- ~ D6 y6 I* r - return "";
( X4 o) {. [6 X - }8 H8 h6 G' d6 X" E0 I; M$ A
- }1 O6 s0 G- Z9 r+ T( r
- void mainAction() {
+ a) H6 g" X# x% L: B# V( }! W# K4 J - // 发送请求: L/ I- _( a- h$ |6 i$ m
- doGet("http://google.cn");
+ D: V [6 s/ t! I% J e+ O1 J - }
3 P6 @% k% A: c& j. N! ^4 \8 }8 P
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