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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)( N7 B- g; q& w7 X( c3 B
- #include <ESP8266HTTPClient.h>+ Q# a3 |2 i- W
- #include <ESP8266WiFi.h>
7 M7 M% P2 |1 k" k; L# J - #include <ESP8266WiFiMulti.h>
7 }. E! W0 }/ ?. } - #include <ESP8266WebServer.h>
* X& j# J# w; u% w - #include <arduino.h>
. Y/ U* O' i& j/ ~ S - ESP8266WiFiMulti WiFiMulti;
3 W! l. V& n* E5 R5 k/ g - ESP8266WebServer server(80);
& g4 j) z6 M! ~! L+ T - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. t2 h" j/ F: H
- ADC_MODE(ADC_VCC);
& \* S6 D% \8 Y! d" L( O4 e( a - void setup() {* |5 y$ _. Y% h* X6 ~9 l
- Serial.begin(115200);; D) z7 K2 E& r4 t: n# m# n) L
- Serial.print("\r\n\n");4 t0 ?( ^; M) G; y
- pinMode(2,OUTPUT);3 P( H" p4 n# C4 z. h3 l" v- c! U |: N
- // WIFI
" X9 k. ^" C" m8 q+ B1 H- ~ - WiFi.mode(WIFI_STA);" P3 ^1 ~$ X* K, m3 [* b
- WiFi.hostname("Sparkle");# s1 q: Z; [1 |. s: L6 i7 P2 O z
- WiFiMulti.addAP("wifi ssid", "wifi password");% c+ S+ o4 q% I7 y6 d; P$ Q6 n {
- int tryNum = 15;
' q' D7 q0 x0 g4 ~# r' y - Serial.print("Connect WiFi");
?/ S0 g i! J* S; x( N+ U - while (WiFiMulti.run() != WL_CONNECTED) {
: I" F3 `( x) W% _) v - digitalWrite(2,0);5 K) n' v/ u" r) \' H
- delay(200);+ ?: p% C/ l( O+ u, l. k5 Z
- digitalWrite(2,1);( M/ e0 ` r+ J0 T# |/ D1 g
- delay(300);- m# {1 \4 r: a# O, y, S/ c* u. I. T4 Z
- Serial.print(".");
8 F0 V. P$ ]' E - tryNum--;
. ^( U# D. L( r- l* ]% e - if (tryNum == 0) {
% r) M3 N. m& W& S# V- ? - // 1min; p. p. p! y! c: j/ |( A
- // ESP.deepSleep(60e6);' g) `. O$ \) n1 q( F
- ESP.deepSleep(0);- w8 G( r0 L; w
- }
9 G6 n5 w; j" x1 x" X7 S: w - }+ `" ?( D$ F& ^
- Serial.print("\r\n");
6 t0 e, J) o! p% m: I- g - digitalWrite(2,1);
& h- f% W: t1 M2 D" r# [4 i - Serial.print("IP address : ");
3 _; j) o( j* A! c# Y - Serial.println(WiFi.localIP());
. l% o% Z1 V6 H- o, `/ L - server.on("/", HTTP_GET, [](){
. |2 b n( s: S - server.sendHeader("Connection", "close");
* j& F, ?( ?" Z" R - server.send(200, "text/html", serverIndex);9 c6 k# H& ]4 x6 e/ ?# _
- });) @. a! i4 o% E8 u. r' P/ B* T" g3 I8 m
- server.on("/update", HTTP_POST, [](){- t" @8 R* x6 b' B% a; W+ |: v
- server.sendHeader("Connection", "close");
+ w. A) D* w( T( d" U: C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" g/ K! Z+ @( D& m - ESP.restart();
8 Y. P! ^1 k0 K/ _( M' h - },[](){
# w" X) _4 ~; U) p G - HTTPUpload& upload = server.upload();
4 X2 f0 M. Z8 f - if(upload.status == UPLOAD_FILE_START){
/ l. V/ |/ k1 ~2 E S - Serial.setDebugOutput(true);% S" ~1 q% y$ ?) x; t
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 `& W# b% Y: E1 j - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 W4 s' S9 Q7 `, M, ~3 u
- if(!Update.begin(maxSketchSpace)){/ D4 J' V* z9 n4 b, J
- Update.printError(Serial);: Z9 o; h# S' v$ ^# }: X! q* F; r
- }/ s' x( Z- k4 H* @
- } else if(upload.status == UPLOAD_FILE_WRITE){
( a+ V- i# k0 S' k9 Q5 L: U - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) Y1 b1 p5 |# @' I
- Update.printError(Serial);( l: E& `4 {; y6 w @
- }
; h, D0 i' z2 @* r: k - } else if(upload.status == UPLOAD_FILE_END){% M: S+ d, n! R$ }' v- K' y
- if(Update.end(true)){" U& ] d2 x! y8 d5 u/ B+ {
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 v6 T" o% @* Z) j% d. k4 e" y
- } else {( R2 j0 A/ t% V4 \
- Update.printError(Serial); m3 d: M0 O4 z3 P& ]* z
- }4 `2 b; Z/ F, `# j* z. |
- Serial.setDebugOutput(false);
5 n q8 P; F) h. p* l" F - }
5 b7 X3 U& j& j6 z - yield();
* ~+ Y: Q* \- `- h4 C+ I - });& |3 ?( o3 g$ x3 p
-
, h$ B' u$ x! l - digitalWrite(2,0);+ C. X7 Y+ K+ ^3 T- h7 v% L
- mainAction();0 T: D B: |3 C4 x3 Z8 M
- if (digitalRead(0)){# q3 [" r" E3 f7 u! C/ S
- ESP.deepSleep(0);+ O" U! R8 g+ N
- } else {
$ ^4 k! S# X' x) }7 J, K/ q. W$ f - server.begin();) [4 {. y- Y( @6 `& c8 K& ~
- }8 c. }+ @7 [) z* d( O. K, H
- }) R; j' T& \, T& X. g( o2 t
- void loop() {
, P( D' P% o4 L s0 H9 X9 m. R - server.handleClient();9 j4 ` H8 z( O' n9 g* V4 q, A1 {6 `5 q
- delay(1);
) } \" {' N5 r) o - }+ |3 d1 v' Z" v# c) _- n
- String doGet(String url){ g: H2 g" C4 o. J
- if ((WiFiMulti.run() == WL_CONNECTED)) {& }% j4 m7 p: N5 ^" _* e7 o* r
- HTTPClient http;4 Z- F. G+ J$ w" n8 k& }
- Serial.println("[HTTP] begin...");
0 e1 k2 G* g& j/ a4 {. A9 g, w - if (url.startsWith("https")) {' G I* ?6 j0 U+ E% q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
7 I4 A3 v) J* {& ] - } else {
o% ~9 L. b4 G8 m3 i - http.begin(url);! |' p# m# Q, P1 P: a$ P2 j
- }
4 j( @2 a9 z+ |7 \$ N - Serial.println("[HTTP] GET...");4 E; u7 ]0 O2 v5 I$ a
- int httpCode = http.GET();2 x0 R, u/ l( Q) h# f) x/ B8 ^) T
- if (httpCode > 0) {: b) F) D3 b0 }/ U. U: o$ `$ f
- Serial.printf("[HTTP] code: %d\n", httpCode); A) h, c T+ p
- if (httpCode == HTTP_CODE_OK) {
; N8 N" z$ s# j. U! h, U2 v% g - String payload = http.getString();
" h4 f8 m' s- }" C( v - Serial.println(payload);5 \1 B0 Z D" _: {. \5 k
- Serial.print("\r\n");+ q" l" w7 W' I# S! i2 r5 H. y5 z
- return payload;
, w! M" f ]: F5 U7 H - }
: `8 C7 `" A+ O9 h' {) [ - } else {
5 m6 E# K% H. c/ w2 o( F, f' [$ Z5 d4 F7 | - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 X( o) ?% i" W, J - http.errorToString(httpCode).c_str());' T0 q7 |- W/ J, O' O
- }
, K# ?! W5 K% j4 f - http.end();9 g! k3 l) B* D& V& S8 R, X0 ?: h
- return "";
; e5 J2 x' D4 @) c9 g) n1 U, M - }
0 O1 k# m& E$ Y" P" o - }+ i( g& V, {+ v- `
- void mainAction() {
1 t. ~6 |: p! ^& s2 U2 ?6 C6 S' Z5 q - // 发送请求
# G8 v7 }" y/ L! `+ t& w - doGet("http://google.cn");* W6 m) h1 W5 {. h% z
- }
! H9 {9 C, C9 `4 u
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