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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)8 b9 J0 T2 E- _
- #include <ESP8266HTTPClient.h>5 o, D; r* M( c. S) S0 [
- #include <ESP8266WiFi.h>: m1 |* r, v9 M5 q4 s/ |2 M
- #include <ESP8266WiFiMulti.h>
/ G3 H3 h; z- u6 A* y - #include <ESP8266WebServer.h>8 f; a# [8 Z4 \! r+ L; e: `
- #include <arduino.h>
1 g k/ L# A3 f - ESP8266WiFiMulti WiFiMulti;7 s W: Q( x0 o7 T/ X% }
- ESP8266WebServer server(80);
" \% z' P: U5 [. } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ O' E; y5 |2 v
- ADC_MODE(ADC_VCC);
5 ], S$ o( B, |8 m - void setup() {7 j- R9 h0 f$ o0 z+ i6 S
- Serial.begin(115200);
, @! c7 W% ~2 l1 _ - Serial.print("\r\n\n"); b B- e. F9 A& N5 Y/ H
- pinMode(2,OUTPUT);" e( p/ D2 j, P2 P" n) r1 ]
- // WIFI# ^% P& ]! g' f7 O' z
- WiFi.mode(WIFI_STA);
$ j, \; [/ M+ z8 S' r% ?6 T% |! ` - WiFi.hostname("Sparkle");5 B t& R& J% y: Z% e+ ]: U6 W& E
- WiFiMulti.addAP("wifi ssid", "wifi password");
, u( |0 B! o" H5 {% u2 l - int tryNum = 15;
; q3 t+ J4 R5 s' X - Serial.print("Connect WiFi");
7 @* o2 o. G/ D- \, t L - while (WiFiMulti.run() != WL_CONNECTED) {0 z3 U8 {3 W J+ K+ ]; |
- digitalWrite(2,0);9 |2 h% A- x6 d- o! X. Y6 @
- delay(200);
3 C" Y, n$ H7 A7 H1 Z4 I - digitalWrite(2,1);
) z! e+ ^ ]7 a - delay(300);
; j: ^$ ~' I5 j+ p0 }0 s - Serial.print(".");
4 J1 z* D$ c7 V - tryNum--;7 c/ U6 r- I: `
- if (tryNum == 0) {4 G" P: G+ c+ h5 A0 _1 X. K* }
- // 1min
+ |5 {; t7 B. z4 G$ W. h B - // ESP.deepSleep(60e6);; X& y8 A& t% O
- ESP.deepSleep(0);
; [1 [/ p5 G: A - }) _0 ?. m, c" B3 W4 q& I7 T' F
- } t/ N& b' O! P& m: j5 U6 A: b
- Serial.print("\r\n");
5 r& h+ Q3 b+ o8 u9 Y9 ^ - digitalWrite(2,1);
0 f( e* X' u4 W0 k1 h2 H - Serial.print("IP address : ");" o0 G6 }( i3 ^/ G
- Serial.println(WiFi.localIP());
$ L" w' h7 B2 l; c - server.on("/", HTTP_GET, [](){
: Z) \2 B% S4 {1 N: h5 U% |% A - server.sendHeader("Connection", "close");$ p0 L3 I6 D D d! T, k
- server.send(200, "text/html", serverIndex);
! y/ q$ P2 \: [# l" ~+ ~ - });1 D p9 L. p2 [- v. S
- server.on("/update", HTTP_POST, [](){: Z y2 ?: L5 ~
- server.sendHeader("Connection", "close");
$ ^. p3 P G" b, E- |7 t; S) E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 m; V. s# ?8 E l: f: t4 o+ \ - ESP.restart();* U3 ?6 Q( y9 E
- },[](){4 |! \& H% H* U" S# U/ B/ ]9 }
- HTTPUpload& upload = server.upload();
- \) e, r* P1 W7 P6 U/ A) d4 e$ N - if(upload.status == UPLOAD_FILE_START){
; ?4 S- G: `: i8 u) |3 N - Serial.setDebugOutput(true);
+ z& P9 u! J4 r- U. n' o* e - Serial.printf("Update: %s\n", upload.filename.c_str());& p* d+ n) j: f; H+ z6 W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% @% ` v# v- a, {4 B - if(!Update.begin(maxSketchSpace)){+ s8 B5 e; P; J0 I" t1 m' n$ G- p% L
- Update.printError(Serial);6 T2 H* J0 o' D2 [8 h$ j
- }
: E/ _- p7 @4 o - } else if(upload.status == UPLOAD_FILE_WRITE){
0 |4 \8 }% t2 z$ _+ m3 F - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! p' d; ] \ A7 [
- Update.printError(Serial);
4 A4 A( b) V R - }
& S1 @6 n. g; v - } else if(upload.status == UPLOAD_FILE_END){" i; u* q* D: P" G' S
- if(Update.end(true)){
2 Y4 h# u" S; H2 u' h$ ^9 m) X - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 N$ A3 R# m. y8 J9 h - } else {
0 l! ~5 n, N& K. C - Update.printError(Serial);2 G# a9 g2 B, ]" z* k
- }* H# [$ X5 X6 b* L: S0 D
- Serial.setDebugOutput(false);* U# k, D0 E0 L! n) o; C
- }% ]2 B+ m. {' \, x3 b
- yield();
3 P8 y: F) W1 V - });
% N! J! C$ g/ i* h - 4 j/ s7 J7 w. k9 M: J1 j
- digitalWrite(2,0);
: T4 `- M; b4 ^! b - mainAction();+ ]5 {" \. \2 @; P! g* ~
- if (digitalRead(0)){% j" j i& f& ^% p7 E2 z. ]
- ESP.deepSleep(0); x: M+ O# j* t' R
- } else {) }! Z' H. I1 H% x7 T. x
- server.begin();$ x! R2 `3 ]' a, o( |
- }6 P$ K9 x( b; f; d" ^8 ^+ j( _2 E( H
- }0 h0 z/ g1 [1 a
- void loop() {& s# i) P9 \; v7 u; M* J
- server.handleClient();
: O8 u) p4 [7 w) F9 | h7 M - delay(1);
) k' N N j, }4 h9 ` - }
7 I _* W5 S) f# h$ r7 L$ ~ - String doGet(String url){
: h9 A9 f" q+ w2 Y8 O1 y - if ((WiFiMulti.run() == WL_CONNECTED)) {5 b& L" s4 \' e% k
- HTTPClient http;
4 C4 y+ V0 e9 ~; i2 Q - Serial.println("[HTTP] begin...");
" {5 J$ G' x/ y! w - if (url.startsWith("https")) {
) p6 R* w/ a; G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 C, o0 z$ g' |' [% }' r0 C
- } else {
7 j9 `7 R" y7 N. U; @! l7 s( o* l - http.begin(url);
3 t) i# C/ V' U- x# R$ F* Z$ l - }
{5 L6 x. s0 X9 w6 f( X% W - Serial.println("[HTTP] GET...");+ r# J/ k1 J1 p8 u
- int httpCode = http.GET();2 F& l# H! s3 h! p
- if (httpCode > 0) {* p: I! V/ i; j8 g
- Serial.printf("[HTTP] code: %d\n", httpCode);
. f' q. ? w& _& D0 k - if (httpCode == HTTP_CODE_OK) {5 |+ i, c4 W# B2 j u j
- String payload = http.getString();
) j a+ v! W+ F5 a* t# m" k - Serial.println(payload);
~! q+ V% Y. w# a7 g - Serial.print("\r\n");- }" d" ]* J8 B0 {* M
- return payload;
* M, F& \+ `+ A0 l6 m - }, N1 [) G$ Y t/ r0 g; u+ D% c
- } else {
' {% ]* A; [( E1 ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",
& l* G7 u3 A( v$ s) h - http.errorToString(httpCode).c_str());+ J) p/ q$ H) O+ `- W5 v, n
- }
" q3 f( V0 y a9 ?: C) h. L - http.end();
) |" ^# W( s$ O% C - return "";
$ p, w& @) }4 Q& } - }1 i. Q# l! [6 o8 E# Q% A! f
- } V* s6 e$ }1 T% h0 j$ K4 }4 H
- void mainAction() {6 a# N( g1 z9 s0 q4 d+ n
- // 发送请求% B0 F+ _# J, { y% G5 H+ m
- doGet("http://google.cn");
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