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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)6 V' m) ^, N, ~1 C, z
- #include <ESP8266HTTPClient.h>, N8 I6 W9 @( ?. k8 p; p
- #include <ESP8266WiFi.h>; f( O# E9 r+ W! R2 F
- #include <ESP8266WiFiMulti.h>! `2 s ~& Y8 ^, E7 a3 v
- #include <ESP8266WebServer.h>
* H7 B! x0 k$ v0 d$ A$ a - #include <arduino.h>6 z8 m1 q$ H6 U, `( a' M2 j' V
- ESP8266WiFiMulti WiFiMulti;! V' P. H9 Z$ G/ H U
- ESP8266WebServer server(80);
, o; f. W0 l* h0 y- H1 p - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 k7 e* a! K4 D5 ` - ADC_MODE(ADC_VCC);6 L) F7 \: A! W( i4 A" ?2 w' r
- void setup() {& O9 G0 G# H: ]) g7 W* w) d
- Serial.begin(115200);- c7 G, E% d. U, A
- Serial.print("\r\n\n");
6 c. A5 Y5 g( K4 I - pinMode(2,OUTPUT);
& e# O% g3 z" Q/ U9 d; M - // WIFI5 ?9 m! f& `7 y% h& H3 r
- WiFi.mode(WIFI_STA);
0 u8 |" @4 E( b" S0 p - WiFi.hostname("Sparkle");8 s s# ^ u9 |2 n
- WiFiMulti.addAP("wifi ssid", "wifi password");* Y* W6 g- K4 y# f" \
- int tryNum = 15; }& t5 {. K; T8 w+ j& {
- Serial.print("Connect WiFi");
0 J. c4 ~; k. S+ e) i - while (WiFiMulti.run() != WL_CONNECTED) {
4 g6 A4 J! w1 l& x8 v' \9 |% ~ - digitalWrite(2,0);
. o" ~0 J! W- o! h, O - delay(200);
+ J+ R& l# q' J4 N; \ - digitalWrite(2,1);1 ?5 E0 r- H2 `/ _+ E' _, N
- delay(300);4 o7 g3 K6 G* t5 Q7 i5 P
- Serial.print(".");
1 q4 d# P, I7 J/ U: K - tryNum--;
: Q/ |4 H3 [0 |9 g. k1 L& \ - if (tryNum == 0) {' {4 {2 N4 I+ ^ {- X; a' y
- // 1min' J+ i1 \* M* ^8 q
- // ESP.deepSleep(60e6);
( {" h! D) ?9 b. a7 y1 s% x2 r - ESP.deepSleep(0);
* B* g3 I5 L' i - } L. X5 Z6 e0 c7 _& z9 M& N
- }
! ]1 _7 x% O) f- U: ]% R - Serial.print("\r\n");
( L- @2 j+ P- {7 Z; H - digitalWrite(2,1);/ U% N% w; Q! M9 v a! D) K
- Serial.print("IP address : ");
$ _6 h {4 K, H9 \( k - Serial.println(WiFi.localIP());+ s" b& i5 S7 g& e% [: N. g
- server.on("/", HTTP_GET, [](){
# W) b6 }4 p4 R! r n7 k0 ~ - server.sendHeader("Connection", "close");
& w8 ?$ D2 G! }0 ^% }+ m3 l - server.send(200, "text/html", serverIndex);
) [" Z' U5 k3 D# L# c - });- [+ n) a9 d& d0 w9 v) z
- server.on("/update", HTTP_POST, [](){
4 t* ]/ j: K9 c6 l1 V& h! y - server.sendHeader("Connection", "close");! Z& o4 W. M% m1 g: X% S, y3 [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% {4 y1 b# ^: n. r& l3 s+ l0 j/ Q, Z - ESP.restart();! L) J. ^' {! T6 w7 s9 h8 j
- },[](){
! C' B9 I( [: ~1 h7 J9 A7 G9 R - HTTPUpload& upload = server.upload();
$ _2 s, p7 b- Z: z. Z# E* e0 [$ ] - if(upload.status == UPLOAD_FILE_START){ ?2 B0 M4 B6 |* \
- Serial.setDebugOutput(true);+ k# J, L. z" B9 _
- Serial.printf("Update: %s\n", upload.filename.c_str());
4 Z: z6 w# _$ x - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ q5 d: d! _0 T- L( o; j - if(!Update.begin(maxSketchSpace)){: O, R5 G: u) u% P! X
- Update.printError(Serial);
: e; u: B m0 O& ]) F% o* V - }7 Q4 d, Q0 n8 I- k2 i
- } else if(upload.status == UPLOAD_FILE_WRITE){) o' a! ~4 }3 H3 f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ B% F+ F6 l. M" Y - Update.printError(Serial);
" o# h* T; i; z( x - }
! M- d% n- K/ @% m0 T' f - } else if(upload.status == UPLOAD_FILE_END){
8 X& Y# Q3 R( w8 Q( R; j - if(Update.end(true)){
* D" N- z" I$ b( W - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 x! ~. N( {. Q h P1 \' s
- } else {
- x9 R$ T9 \8 z - Update.printError(Serial);
+ `) }0 B& y# g' j7 f# `6 r - }# I7 h9 @* n2 G6 {1 F
- Serial.setDebugOutput(false);
0 g4 l" W; ^1 q! p% S4 t% H3 v - }, Q5 I1 l. O$ O/ Z$ y6 I
- yield();( M7 Z1 H/ ^. v- z( q3 l
- });" K$ x9 ^8 ~) ]: F, f, n7 o
-
4 D7 f; m- z; o* C1 I - digitalWrite(2,0);: P; l9 t1 K# ]# f2 Q8 h
- mainAction();
2 _) I4 @8 K$ O' \ - if (digitalRead(0)){
* |! k. Y! X1 B* d( R4 f - ESP.deepSleep(0);
: O2 i- N, h5 [- T - } else {
9 P& `; C* T% O; _ \% X; b - server.begin();
9 X7 g$ e" Y4 W3 C6 \ - }3 S3 ` F8 `! V9 n$ b7 o
- }* v( i0 I# ]7 ~6 p8 Q p' E" a& W8 W
- void loop() {$ X4 Z% u& i3 [9 a
- server.handleClient();9 x. ]# @6 c; r9 t+ Z
- delay(1);
8 S( A: ~0 N L. | - }
) {! g+ n. ]1 I6 _. `/ F! V - String doGet(String url){
7 B8 l5 z9 E3 E - if ((WiFiMulti.run() == WL_CONNECTED)) {
- V2 k- {5 V9 M% Q0 L - HTTPClient http;
+ y4 J! c' a7 d - Serial.println("[HTTP] begin...");* \ F% Q9 a& \ U' ~
- if (url.startsWith("https")) {- T' @2 {: h0 Y2 Y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# \( D1 X' s! E+ U6 q
- } else {
8 G, ^6 q" x9 k- d0 P$ ] - http.begin(url);' @# Z# B) j- l
- }# d4 M @3 J8 S1 P) Q/ q/ A
- Serial.println("[HTTP] GET...");- E8 e: u/ W) Y& V
- int httpCode = http.GET();
1 {2 d, i [8 ^ o W - if (httpCode > 0) {( p/ H2 ^/ N0 ~
- Serial.printf("[HTTP] code: %d\n", httpCode);
" H: ^2 D& ^% l+ e n# Z9 u - if (httpCode == HTTP_CODE_OK) {) [) n( F u- t8 ?+ m$ k, t/ P& M
- String payload = http.getString();, L; d1 ] U0 m9 s! {& t
- Serial.println(payload);
* u5 q) ^7 n% [9 ], c& B - Serial.print("\r\n");! q6 k: q I/ q
- return payload;
2 q; N3 x7 c4 F: U/ A - }
) {& ~7 |9 F9 r' X - } else {
* m, z8 ^$ |$ }9 y# r$ [; U - Serial.printf("[HTTP] GET... failed, error: %s\n",
, d9 W6 B- E p/ C% i. m0 y - http.errorToString(httpCode).c_str());
1 B0 k0 S8 n$ {$ k: C, ~" G: ~ - }
' s: }5 j. f1 m - http.end();
( p# d. w* W0 C# d* l0 b - return "";
9 P, B9 K: R& t5 g8 @# Q" [9 q - }
( g+ |+ W, {3 b - }2 ?$ ?% T* o6 }* j Y
- void mainAction() {
8 J/ S' P/ \3 Q# `7 W, `9 i$ R9 W - // 发送请求/ h/ l: K: l7 d; e4 ^8 E
- doGet("http://google.cn");
8 x e$ b' L4 X. F* N - }
9 m6 l! T4 E. S& k0 I, t
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