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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)
2 _3 g9 |/ A2 X: O- #include <ESP8266HTTPClient.h>- |& ^+ B/ x2 Q' i4 L
- #include <ESP8266WiFi.h>7 K" s. E$ R, G4 w) {
- #include <ESP8266WiFiMulti.h>
$ t! x2 _" W5 t2 h5 ?# N M - #include <ESP8266WebServer.h>
' m1 l; f8 u( g, K5 g - #include <arduino.h># t% X% y d8 V% W% n/ C
- ESP8266WiFiMulti WiFiMulti;
2 X* v) ~) ^( W8 w( C - ESP8266WebServer server(80);; v" I" b3 p# b& Q c) }. _7 N
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ L- ?4 \+ c4 ~1 c7 K
- ADC_MODE(ADC_VCC);& V5 e- V, s1 y/ F
- void setup() {
7 e* w$ G* B' U( z( g, x - Serial.begin(115200);
3 S$ ?8 O$ n# R7 d" N. f9 Q - Serial.print("\r\n\n");+ V/ ~0 a% y0 Q
- pinMode(2,OUTPUT);) w- ^* F# x5 F+ [* \5 I
- // WIFI
/ [4 r% w/ ?1 {# C - WiFi.mode(WIFI_STA);
! J4 d* ^$ H, B% _8 Y7 f - WiFi.hostname("Sparkle");
5 B. A5 M% u5 Y5 Q - WiFiMulti.addAP("wifi ssid", "wifi password");( @/ x" C5 h- p7 l, {" h
- int tryNum = 15;
# M/ n+ {( G3 j9 Y6 x$ P8 P - Serial.print("Connect WiFi");
6 W% M: C# D$ G5 u0 I - while (WiFiMulti.run() != WL_CONNECTED) {0 B' O4 B! I a! b: I2 u6 S
- digitalWrite(2,0);9 W- S1 {3 J8 ]5 }
- delay(200);
# d3 B0 v! e- W9 O - digitalWrite(2,1);) H0 ^' u3 H. [6 r8 b
- delay(300);
0 f. Q4 N9 ?5 f/ w - Serial.print(".");4 h7 K5 a! e# q
- tryNum--;- O; t I- J* e; c% V9 ]! s
- if (tryNum == 0) {
% E, e N+ c" r: Z - // 1min
~) ~. s, x/ X0 P - // ESP.deepSleep(60e6);' _* c. c8 z: [5 n6 Y
- ESP.deepSleep(0);) `, [) k3 }* Q& l9 n; r
- }, J# @ H, P* U
- }
8 Q2 ?$ ^# n( j; u: s - Serial.print("\r\n");; G' d! g1 s& p; h8 b
- digitalWrite(2,1);
- r0 H3 @6 y7 e. I- m8 f8 ? - Serial.print("IP address : ");
- |- E" l. V0 T3 _0 F o& v. q/ I - Serial.println(WiFi.localIP());8 A, H; I; P3 e0 l+ j2 i: b! N
- server.on("/", HTTP_GET, [](){
( d9 U' Y; b' Q8 ?5 b - server.sendHeader("Connection", "close");
$ K8 z+ @# y- ]1 z - server.send(200, "text/html", serverIndex);4 a$ Q" \$ `% P8 r
- });
8 j. I* J" O' K- A - server.on("/update", HTTP_POST, [](){
, K P, c9 O6 v! ?5 s4 S( B - server.sendHeader("Connection", "close");
) y6 M& b! \' p" l. e, b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% k+ T/ R% q% a - ESP.restart();, m! v$ ~' s5 }) q: U
- },[](){# y& c @5 R% P& p
- HTTPUpload& upload = server.upload();
$ O2 ]0 C; h- a3 L- `5 H6 D& b. e - if(upload.status == UPLOAD_FILE_START){7 G) b' ]8 J. @& @* s9 W$ j9 X
- Serial.setDebugOutput(true);
; `) |3 d0 Z; s - Serial.printf("Update: %s\n", upload.filename.c_str());
# H/ ?0 ~9 a' _% S+ i8 x/ k5 B7 z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( V( L- A8 [8 s% L+ L6 V
- if(!Update.begin(maxSketchSpace)){9 k. o3 [; ?2 i9 i$ h, H
- Update.printError(Serial);
y7 |- r5 P2 l2 F4 p7 t+ D - }9 ~3 H8 ~# N6 }' d. K) w0 u
- } else if(upload.status == UPLOAD_FILE_WRITE){# `/ q, Y$ v2 j0 }% L/ L: v$ n% l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 o/ L; X* V* @6 a) j' T0 }
- Update.printError(Serial);
- [" H# k/ L0 d5 E8 o - }- `$ Y8 |3 k* R2 C& V/ s, `* k7 N
- } else if(upload.status == UPLOAD_FILE_END){
, @4 ~+ l3 {$ y4 j# k - if(Update.end(true)){
, ?0 m0 N$ O1 Z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 W: X w& p+ Z$ w/ W# O
- } else {% s W1 k9 K" _8 ]9 e6 F9 {: {& u
- Update.printError(Serial);! E8 x' [4 L$ \ J
- }
' v+ ?. J! |4 x. ?: P. k - Serial.setDebugOutput(false);
6 Y [/ L- Z. j0 \& ^" _# C9 Q& | - }/ _( E k, X5 l# d- P' m1 I x
- yield();
0 K X O) O1 a( d# \ - });5 u0 K+ O# p8 {' W! O
- ) `2 p2 F% D: V$ f
- digitalWrite(2,0);% O. w. e; Q- k1 Z2 p% A
- mainAction();6 O. x6 p3 r4 _2 Z+ {+ W/ s
- if (digitalRead(0)){
0 l- j) V$ A K s8 `+ p/ ` - ESP.deepSleep(0);9 k0 F# M1 ]+ h2 @
- } else {
( q/ P) t* O+ @7 V! M7 o - server.begin();
_$ ]" D. ^7 O3 U, v1 V - }
7 m. k0 b7 j3 K - }
! L# s! w# H- {6 Y - void loop() {
4 H5 F$ H4 q, t1 o5 a8 S4 R - server.handleClient();
0 B! V' C0 h( H# s8 u - delay(1);, Y% S% C/ j: S" W2 a- Q
- }
6 E3 N# [. `/ ]" t - String doGet(String url){
5 J( z' L; ~5 ~1 i6 L7 O: e7 b, x - if ((WiFiMulti.run() == WL_CONNECTED)) {
; ^1 O* t ?0 I* p2 O# M& q - HTTPClient http;
- B5 p1 s! d! m! N C9 f - Serial.println("[HTTP] begin..."); {) o5 G5 N- i' f0 f3 \+ M8 {* w# N
- if (url.startsWith("https")) {
. G" `+ g5 f9 @2 M" u6 T/ I) c - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ H( h3 e: J2 X* {( }9 ?, x - } else {# x& f1 E7 _& L
- http.begin(url);
. r/ g. A1 z+ L9 @( @& Y - }8 l. d( ]6 R4 i) ]/ ^& @8 j
- Serial.println("[HTTP] GET...");
% A6 s' C. @, x( D W. g2 `, w, [, D1 Z - int httpCode = http.GET();9 S' p+ ^( E, E$ W' f" n: H
- if (httpCode > 0) {# T: _1 V; a# g+ D. W
- Serial.printf("[HTTP] code: %d\n", httpCode);
x) U3 a- v8 H1 r' V0 d. e' v - if (httpCode == HTTP_CODE_OK) {
+ U- n& h7 w7 x' S2 e% g- N4 }8 D - String payload = http.getString();
8 s# [/ o- Z/ _7 E - Serial.println(payload);' a" K) e! O! e0 j% N8 i
- Serial.print("\r\n");
$ t8 o! ^/ ~- c: M# G - return payload;, r) c1 i. a3 q* S& S
- }6 X. v! ^, n. K6 F' S/ q% V1 f# v3 T9 T
- } else {
C& g; y' M5 W# B2 ]; f: y) x) v - Serial.printf("[HTTP] GET... failed, error: %s\n",
) y( P1 Z% L& h7 x( P5 g1 k - http.errorToString(httpCode).c_str());
5 g, C, q E5 W% D7 j$ F6 o. d7 [ - }
0 d- b) _6 U; \2 w; S2 D' k1 A - http.end();
) l9 ^1 @0 `8 Q$ K+ l; w3 A - return ""; g5 b/ p3 N ^( X7 |, e: T: D a; m. Q
- }
1 }4 O, @, a3 S& {: H# ` - }) {4 {# J$ L; R. M) C( \; `/ K3 V6 m0 l
- void mainAction() {
6 @+ H# }1 C/ a; G i! k) O3 |' v! z - // 发送请求& U; ^% y9 K9 O6 L6 Q
- doGet("http://google.cn");9 E- e5 s7 e( j A
- }
- i5 ^* M! e% `7 e: f/ j3 b
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