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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 r$ u8 G
- #include <ESP8266HTTPClient.h>
`% R6 A+ u3 H0 U7 L% I- Z - #include <ESP8266WiFi.h>
% }1 F$ J9 Q8 p - #include <ESP8266WiFiMulti.h>
% x* j( u9 j4 a% O; C - #include <ESP8266WebServer.h>7 m7 p0 V5 |9 C
- #include <arduino.h>! R5 ]& c; Y4 z
- ESP8266WiFiMulti WiFiMulti;
0 [+ {2 Y; f% d0 x: P - ESP8266WebServer server(80);
* x/ Q- m7 Q. r - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. A7 B& q: t6 T+ `1 n
- ADC_MODE(ADC_VCC);( Y3 _( _' C& I9 W1 T
- void setup() {/ ]5 r; l1 x1 {9 p0 H% [8 \
- Serial.begin(115200);
# ^: q3 Q& h: |7 U/ I - Serial.print("\r\n\n");; B4 r- c" n2 p: E) H
- pinMode(2,OUTPUT);
% Y- o$ {$ ?/ r0 x" \ - // WIFI
( Y0 x' {0 Z' z6 e+ q" a - WiFi.mode(WIFI_STA);; S; ]& @& M4 ^* Y' S# S7 _, H
- WiFi.hostname("Sparkle");# a; _' d) O+ z
- WiFiMulti.addAP("wifi ssid", "wifi password");
" S9 F% B: L# z+ V - int tryNum = 15;+ d- M/ S. R( \7 ~2 d
- Serial.print("Connect WiFi");2 B" a1 {; t+ J2 N3 T7 L
- while (WiFiMulti.run() != WL_CONNECTED) {
1 F' v$ @" e' e$ k2 S - digitalWrite(2,0);
4 h9 {2 w: N! E5 s j: i1 H+ p - delay(200);5 l( W! I+ I+ U7 \# \$ n2 ]
- digitalWrite(2,1);
3 n0 y: s" H; n - delay(300);
; P0 w; z1 R6 x6 D& z; O - Serial.print(".");4 K# {# d- B% {! Y2 }, e2 _" o
- tryNum--;
& C4 y: a. }0 B - if (tryNum == 0) {
* k! M* R) M3 p# n- z4 I/ {, u - // 1min, q, p4 B$ _5 v8 u) ?
- // ESP.deepSleep(60e6);
& ?, h9 p2 C6 f. I# C - ESP.deepSleep(0);
: Q5 r, C( e2 |, X+ ]1 n% c6 ] - }+ O, b' e s+ n# ^8 r8 p3 ~
- }
# ?# P& z9 @ M$ d0 X - Serial.print("\r\n");
* k9 D* L; O* @$ H' U0 O0 f - digitalWrite(2,1);+ X, M" r! w# @
- Serial.print("IP address : ");8 `6 F9 L& a# B) p/ F; l
- Serial.println(WiFi.localIP());9 Q( P7 z% |5 u, `: _' U8 f" K
- server.on("/", HTTP_GET, [](){4 l, G* m. I4 O( y7 K0 w$ J
- server.sendHeader("Connection", "close");
" W( L5 }+ y$ W, t6 N6 b+ a/ {2 Q! i - server.send(200, "text/html", serverIndex);, @$ [2 U$ t! g( _0 o
- });
3 L, A$ d: }* U" b1 Z0 ~ - server.on("/update", HTTP_POST, [](){
/ D0 l5 u+ q' Z5 C - server.sendHeader("Connection", "close");
. M( E/ }5 C6 \+ H8 c* | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. N! A$ b# D/ J3 h; L+ p - ESP.restart();% A9 z0 U7 }6 m/ v
- },[](){
0 I6 F! V" i( M- d& ^ - HTTPUpload& upload = server.upload();
0 v4 D/ @' m3 g - if(upload.status == UPLOAD_FILE_START){% J3 F" g0 H% k7 u/ O
- Serial.setDebugOutput(true);3 @: n+ ~4 m) u- M, v d2 ]" r
- Serial.printf("Update: %s\n", upload.filename.c_str());: S! T* R( K0 e% [7 |$ o9 O
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& g- w$ e5 Z9 F& e2 q7 R" E& B, `! x - if(!Update.begin(maxSketchSpace)){
/ F. C1 k H2 v1 ^; z {3 I - Update.printError(Serial);
, }: O. R7 Z0 q2 W) i, R - }' v; z" Y2 |' ^7 X4 g% e
- } else if(upload.status == UPLOAD_FILE_WRITE){
0 R- a$ _9 ?3 @9 p h( F - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 J$ _9 _9 Q# e# ^+ n8 o
- Update.printError(Serial);/ j1 ~: e+ n a% G
- }
' z5 E6 u- T1 b+ F2 D5 a/ J. G - } else if(upload.status == UPLOAD_FILE_END){3 _1 K1 l, Y4 i* H$ r% X0 z0 S) @
- if(Update.end(true)){
# O9 f0 _; w. {) P' D) [- M% ] - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 ]/ s" e. p; c G3 ]
- } else {
* ~ R1 F; N. F0 M, f" Q' C - Update.printError(Serial);
! ~5 O+ ~5 V' @ - }
F4 j: [* _3 G- d0 o5 q - Serial.setDebugOutput(false);! {1 f) T& Z6 O5 N
- }% ~ t5 m. v) M& V4 ^
- yield();4 p$ n! q+ C0 h7 ~; M1 D. m4 E
- });
0 v1 ?( L. U, O- c e; e; Y - : z( y$ Q& S; A/ V' V# ?) f
- digitalWrite(2,0);
: @; X. z" W, v# d4 k( d) U2 N0 G/ {* j - mainAction(); ` A; \/ J1 z) W# t! o9 m
- if (digitalRead(0)){
3 |& X! N: f& ^8 I - ESP.deepSleep(0);5 a/ q/ e! s3 F& I0 R$ D
- } else {: Y3 ] j% Y7 W' \" ?( v9 K+ X3 w7 s
- server.begin();
: m: G( J* k0 S5 y - }
2 _; \+ l0 G! {5 p9 R - }' y9 K( b1 v- n) w# r$ n; j
- void loop() {8 K! R- }" j4 C8 C8 `# E
- server.handleClient();! k' s! a q( E+ }0 p
- delay(1);
/ _, ?2 d" }. S6 [" u - }
$ G; A5 [: z/ e$ i7 X& K. A) | - String doGet(String url){
- J. u% n7 s0 @' m% N$ d* N - if ((WiFiMulti.run() == WL_CONNECTED)) {
9 `% E, R0 F& K4 @3 d6 M7 }: o - HTTPClient http;
7 i( m! N3 F/ q2 e - Serial.println("[HTTP] begin...");
+ }' s* d+ `! ` - if (url.startsWith("https")) {9 ?+ z5 s) T0 E7 y$ Z$ n/ ]
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 ~3 Q4 z# I# p. R3 y
- } else {
! l: b' P% w8 h, C - http.begin(url);
. `- A" I9 z6 c* r) f - }
' Y& U/ \- c, s6 X1 C - Serial.println("[HTTP] GET...");
) Y4 i" P) x9 o3 W- C - int httpCode = http.GET();, W3 M( s5 |) x, {
- if (httpCode > 0) {+ U! y. _5 |2 R& w5 z
- Serial.printf("[HTTP] code: %d\n", httpCode);
! b8 a0 m# V: d! x y# O - if (httpCode == HTTP_CODE_OK) {- G7 p! n g8 t. H& T" W9 f$ h0 V
- String payload = http.getString();
" T# d, |* d R2 W) e+ q" W" L - Serial.println(payload);* ^; S6 B' @& E2 I" o" M
- Serial.print("\r\n");% ^) P, s7 e% O% W; ]
- return payload;/ u- c, D3 j& R- I0 _
- }
5 T- g% }6 g6 B- e0 |" d: i - } else {" l+ J5 ?8 {0 R" T) Q1 I% D; a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* s- I. n7 [, ?" ~ - http.errorToString(httpCode).c_str());
' d: @& ]# J1 V2 j, u& a/ z - }
/ C. o1 V7 B, {3 I3 B/ ]- H/ |6 ? - http.end();
9 h3 Y; y4 a+ y |9 f - return "";7 P1 O9 Z& D7 z4 J/ _- f4 Y
- }) B7 X# Q9 O% Q) Z" h% K; }
- }
+ ` L+ L) L) W- Q2 t1 |! x! x - void mainAction() {
9 _3 X" w9 ]8 K2 c& i; [2 s! R4 G' D+ F$ P - // 发送请求
2 V. Z/ f3 L k4 {/ Z: a" s - doGet("http://google.cn");
( c5 g& U# T$ y - }
7 d# @4 K2 B3 m' C9 I& a
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