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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) s% ^2 D( D+ k$ E& P: C1 G% s7 s( X
- #include <ESP8266HTTPClient.h>8 i! e, E( j9 D) a9 ?5 d _
- #include <ESP8266WiFi.h>2 C* m( m1 e1 _+ z; O- q6 p. z
- #include <ESP8266WiFiMulti.h>% ?% O% v9 i$ N) ~5 \
- #include <ESP8266WebServer.h>
m7 ^) u# M. V8 U* N+ Y2 Z - #include <arduino.h>
" t0 W) v" ~7 g2 n# ? - ESP8266WiFiMulti WiFiMulti;
( v# e& _6 y& l( C) v - ESP8266WebServer server(80);
" }$ I7 A9 \( G7 p% p - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 b, f- T* F. `: S
- ADC_MODE(ADC_VCC);9 f) Y. G' j0 \5 }9 ?1 V
- void setup() {
, G% U/ `0 c; S' p: A% \0 E - Serial.begin(115200);! B: X! M2 n+ `0 d, o
- Serial.print("\r\n\n");
* M7 G+ z8 Z8 ~! l% W0 ~- T - pinMode(2,OUTPUT);
$ H9 p' Y! e+ h - // WIFI
' \5 U8 ^, S, x - WiFi.mode(WIFI_STA);
/ v9 w3 m" R7 q2 H$ t - WiFi.hostname("Sparkle");1 Y ~2 }2 k% m5 k4 I
- WiFiMulti.addAP("wifi ssid", "wifi password");
( k, Z8 {9 J+ k2 }7 S$ e5 R G - int tryNum = 15;9 M$ N/ K' D8 C% G6 V1 `
- Serial.print("Connect WiFi");9 l2 ^! W x1 {2 ~8 o
- while (WiFiMulti.run() != WL_CONNECTED) {+ Q2 T8 {+ b$ q9 X( M( O$ k
- digitalWrite(2,0);
! t0 B- H! j8 W S - delay(200);
* f9 F( P- F/ |# M0 Y - digitalWrite(2,1);
0 ~4 n7 k( Q- g \ - delay(300);: p/ I) B" \% R& Z0 w( U
- Serial.print(".");
; a6 G: S. {" B4 o% }+ B9 e" m - tryNum--;
# p! x+ H9 X4 m) D' c8 v - if (tryNum == 0) {
, }: R/ y F1 o; P - // 1min' Q0 V, n2 w) q) \
- // ESP.deepSleep(60e6);
! r# m- R5 [3 P& s% R - ESP.deepSleep(0);
9 `5 g* X; ^" x4 @9 v* ^+ H - }
/ t7 _+ T e8 K7 ~7 G; q: U7 ? - }
' `, r" P$ c2 N - Serial.print("\r\n");
9 V+ V3 d$ C: z - digitalWrite(2,1);
5 ^0 ~5 ?5 L* { - Serial.print("IP address : ");7 u$ h& a+ Z8 d1 _% P5 {0 s
- Serial.println(WiFi.localIP());
; K- c1 l5 `' w- v4 O - server.on("/", HTTP_GET, [](){
4 B5 g- c9 }, [( j' A- h6 r - server.sendHeader("Connection", "close");
1 [7 o8 r2 b; j* V/ t - server.send(200, "text/html", serverIndex);: N& _6 R2 }2 {" u2 h4 G
- });. s) |/ u! @' e7 A" m
- server.on("/update", HTTP_POST, [](){
' o" F( ?! Z# o& @1 K+ @, k( V - server.sendHeader("Connection", "close");
( i0 u6 |( x3 P& @ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ a; c! _3 g) W, D, ? - ESP.restart();
/ Z& o+ ]: Z& l2 o2 O! ]& U - },[](){5 W" W7 I" J8 n" L; F' F+ ~7 ~
- HTTPUpload& upload = server.upload();3 X8 ^ ~# P" A+ A" ]( Y0 w
- if(upload.status == UPLOAD_FILE_START){* j) v4 o) v; e+ i1 J8 G9 k) p1 X
- Serial.setDebugOutput(true);5 P# z- Y. F# s( d7 k
- Serial.printf("Update: %s\n", upload.filename.c_str());
" E2 L& _: J5 T8 x7 E& v - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. L, z# | L# r" w9 A9 C+ A$ |
- if(!Update.begin(maxSketchSpace)){* g- g. z; F) D) K
- Update.printError(Serial);
l+ N1 J3 [! |6 p - }' T# x9 f& }1 h& ?6 M0 W5 ^8 z
- } else if(upload.status == UPLOAD_FILE_WRITE){
' g0 f+ T: o5 r) X6 u% C* R - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 T# D6 u: R0 ^6 Z' P% n0 _
- Update.printError(Serial);8 `, w% U' B# u* h& K/ S5 e
- }7 W: Z" N* q, R# Y4 L- p
- } else if(upload.status == UPLOAD_FILE_END){, N2 F% Y, @( R$ w- n
- if(Update.end(true)){
1 Z$ _) ~/ V2 J/ N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 z4 K+ E5 x4 Q# G$ j - } else {
5 X( V3 K* Q6 K - Update.printError(Serial);
* h& T% Z; y: Q- i - }
5 |$ ]/ [; T5 T2 B( C, _ - Serial.setDebugOutput(false);
* ]1 J; W3 r- k$ q - }- x/ }: M4 B i" G2 m' h4 ?5 V
- yield();
6 C8 n; T' M( N, N - });0 S" W f: I' z- H2 x/ |
-
6 Q7 \9 b% h5 ^1 [ - digitalWrite(2,0);
. D2 Q% D) G& t) p% i8 c" R - mainAction();1 ^5 f6 {2 h8 Y! g' w: ]- J
- if (digitalRead(0)){( E0 j- Z- r* S6 G% v0 ^. X
- ESP.deepSleep(0);
4 a, n* ?. ?1 X* |6 @ - } else {
8 M/ y( q! `# ] - server.begin();
; {. q7 w1 m' i J - }
: p0 Q) h: H# X - }
% H5 O% }8 M/ @- n. s/ J - void loop() {, {% w: G, d. b2 V
- server.handleClient();8 A. W. ?/ M) F/ r
- delay(1);
, l& F n. y; B" g1 k4 g" j6 h - }6 L2 K8 D+ H9 `+ N% J6 }( S
- String doGet(String url){) b0 G( w. N+ k. J' U
- if ((WiFiMulti.run() == WL_CONNECTED)) {& O# T1 h* G6 m/ J: D! A1 s" Z
- HTTPClient http;7 B5 P, ]1 t; d) x6 s0 V
- Serial.println("[HTTP] begin...");, X! B" ?. Y# Q& T
- if (url.startsWith("https")) {- u+ a; c$ [' E- ]1 f: @ M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! j p9 d0 p7 b/ Y# `
- } else {5 t# Z; X; ?: M9 @
- http.begin(url);$ c# ^6 ~, |' U9 B
- }1 E+ ~ k+ T/ L9 O
- Serial.println("[HTTP] GET...");0 C5 n9 k5 m/ I! n( Q
- int httpCode = http.GET();
! U1 M4 |+ P9 Z. P6 _, i z - if (httpCode > 0) {
4 M& x- L- Z0 l0 n( J* J8 ? - Serial.printf("[HTTP] code: %d\n", httpCode);7 P! ^8 V4 Z7 P) b) S
- if (httpCode == HTTP_CODE_OK) {+ S; F2 k# _ t/ k: U
- String payload = http.getString();! z0 i w4 }) [' z0 a0 A
- Serial.println(payload);
* J. N# O" b) ^; J+ L0 Z - Serial.print("\r\n");
$ h! k1 z5 Z( B9 @ - return payload;
2 m' N+ s7 S9 S - }
3 j0 ~6 y' m8 \! W) n - } else {. C3 G- c6 K0 T
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 |! T+ V q& Z: M k - http.errorToString(httpCode).c_str());
. w' s5 d9 O8 W% M - }1 \7 N X: z8 d2 _9 z
- http.end();
: O3 P+ I4 p8 p5 K - return "";3 u1 r2 I" l2 B! p
- }
% W, ^; f5 w$ u6 c) R u: K7 k& t - }
0 o- }5 @6 V9 R2 _0 m( _; X& P - void mainAction() {+ a. P0 X, V/ d0 k4 n3 P
- // 发送请求
9 v$ t0 v' F$ l: s% P5 i - doGet("http://google.cn");
" y+ j2 J% Q* M% d7 n# x - }
9 F7 h7 f) w6 I! Z
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