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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)0 k9 o9 t( y+ z2 B' l: ^
- #include <ESP8266HTTPClient.h>. S8 T/ A$ C) ]. h5 x
- #include <ESP8266WiFi.h>
: R9 {# F# }' J7 i0 B3 N$ ? - #include <ESP8266WiFiMulti.h>% ^+ }' z/ ^) l! n7 ?- d
- #include <ESP8266WebServer.h>) r- z: H, {0 Z' S, F
- #include <arduino.h>: R8 y) J5 Q1 ^0 i
- ESP8266WiFiMulti WiFiMulti;
4 k) l7 Q5 G y - ESP8266WebServer server(80);
0 R R6 t# w. u6 g( d: b - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) l6 ~/ e ?3 s5 z+ Z - ADC_MODE(ADC_VCC);) G" r2 o0 F# |2 r; R. R) |0 W
- void setup() { c3 d7 b# i( T: X* W& q, K7 {
- Serial.begin(115200);
( T2 _* v* j6 @" T - Serial.print("\r\n\n");0 z' p: X; Y9 D) C* U* P+ K$ l
- pinMode(2,OUTPUT);/ z+ H" o/ g5 r2 z8 b1 B$ v2 ^
- // WIFI
1 g- u, n. k8 k5 ] - WiFi.mode(WIFI_STA);
( ?1 d5 T, O7 H) k3 Y* C - WiFi.hostname("Sparkle");
: u4 |6 s5 u$ `6 G7 a6 r5 y4 l" Z - WiFiMulti.addAP("wifi ssid", "wifi password");, u; D! b, z2 \' m. M
- int tryNum = 15;1 O) G2 I. X7 X. J3 R
- Serial.print("Connect WiFi");
4 o. X# h! j. t: c) g. r - while (WiFiMulti.run() != WL_CONNECTED) {' ? `8 W* X: p& f8 M
- digitalWrite(2,0);! O, a: e9 k* w7 c$ n8 ]
- delay(200);: u+ R# l* c/ ?, l7 }
- digitalWrite(2,1);4 l6 A- N- O' Z; t
- delay(300);# \9 o$ l9 L3 T4 W6 n- }
- Serial.print(".");
9 G1 Z6 p2 E6 I- f - tryNum--;
7 X* ]2 J7 T# x8 z6 _8 { - if (tryNum == 0) {
. P0 n- k, c+ K, T: e - // 1min
$ G8 n8 s3 a C% G7 W - // ESP.deepSleep(60e6);
, Z4 H7 E' @# v O& X$ U - ESP.deepSleep(0);, x/ l, y- ^$ A
- }
+ Q: p" s0 A" i, \ - }
* N8 a- d, t7 K8 l6 d% d2 d - Serial.print("\r\n");
# n/ J0 |8 D2 A0 q4 l - digitalWrite(2,1);
. `- B6 s: s( |% G - Serial.print("IP address : ");
1 N8 M) }7 j& L9 E3 I0 m% Y2 ? - Serial.println(WiFi.localIP());
# C3 K7 G# |0 y1 V" \0 {0 m$ W5 g - server.on("/", HTTP_GET, [](){
8 c9 W9 j, @4 @) [* t1 W2 x - server.sendHeader("Connection", "close");
- @3 T' E9 _. s* l. a - server.send(200, "text/html", serverIndex);
9 F1 R" }' h# N2 R5 e, }3 p1 U% { - });7 S& t. y& U* D& I1 w
- server.on("/update", HTTP_POST, [](){) |. k7 `& U/ k! E$ w
- server.sendHeader("Connection", "close");
2 m' k6 h [( f6 U5 ^5 S9 N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 _* {8 f- `* m9 X
- ESP.restart();
0 u* L0 _0 N6 k - },[](){% f" [- {' I3 p8 m; L
- HTTPUpload& upload = server.upload();
( m y! i: C: S0 I - if(upload.status == UPLOAD_FILE_START){. ?0 v' N4 M4 t' b
- Serial.setDebugOutput(true);
. q- K v5 g1 u1 ]# B - Serial.printf("Update: %s\n", upload.filename.c_str());
' y" X( ]+ n( @7 Z - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 C+ B# }& R4 i; {) ]) N
- if(!Update.begin(maxSketchSpace)){5 _6 D* d: w5 R
- Update.printError(Serial);
; J, u) I; P, n) C5 ~3 F - }+ j# x0 r3 l5 t$ M2 K
- } else if(upload.status == UPLOAD_FILE_WRITE){
/ N% o+ m3 h; ~# C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; Z1 B/ |3 s6 Y, ]0 Z. f
- Update.printError(Serial);/ ]. |# E' P9 y0 F% r
- }7 p b& N# B- ]$ h. _- ?2 F& S
- } else if(upload.status == UPLOAD_FILE_END){" t+ i& L. ]( O
- if(Update.end(true)){
4 q" M; i. j' u P- T1 Z! Q* Q' D - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 z1 f' x/ `0 V, v2 u - } else {+ b2 H+ {5 y) K, S0 @
- Update.printError(Serial);3 N& h0 h6 Q! U
- }
9 B c/ s8 ?- q# {* V - Serial.setDebugOutput(false);
4 H( p- o ^1 A1 i. p - }; q: k k% O6 W
- yield();
1 v2 A6 Z+ h% n* ~- ?/ ^( } V - });* a4 X+ l; q- u# A C! P7 N/ U; Z8 e
-
2 a Q0 K0 g" N" ^" S z5 v - digitalWrite(2,0);. y( L1 O z `5 x) b
- mainAction();
" O' h% B, S7 ]* n - if (digitalRead(0)){
! M& n7 I5 j: K, ]" g* c - ESP.deepSleep(0);+ i$ _$ L( y& N( ]9 c3 S% T
- } else {
* Y% u( T! s0 v& `. e - server.begin();
/ C/ [0 C, ]( K c7 l - }
% y$ s2 m5 q5 `1 j - }
& t* m; ]/ Q2 Z: x; b - void loop() {
- r' [8 H- |# A: } W1 i4 r - server.handleClient();9 n9 T7 I3 ? M) D$ f; f! U8 [
- delay(1);
. w3 R3 g+ b) H! @. q5 z& b! \ - }
/ e! ]% l. V1 @( V) {6 U& M$ ^9 y - String doGet(String url){
$ ~0 r5 J- _( e% T7 b: V$ s+ ] - if ((WiFiMulti.run() == WL_CONNECTED)) {% X9 g* w* S+ _3 v: \
- HTTPClient http;5 C" x. w/ C- z3 L
- Serial.println("[HTTP] begin...");; D( W- O$ J/ M0 j
- if (url.startsWith("https")) {+ z$ e9 Y. g3 p! q7 q; l# Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# n( a9 s1 `$ h) o
- } else {0 f: E- B2 p' h; U% v3 z9 M. e
- http.begin(url);% a' }) I) ^% r" o$ H, Q
- }
7 k3 x2 `9 e" {% s) d: S5 R* w - Serial.println("[HTTP] GET...");* U; n; d- x$ G0 f
- int httpCode = http.GET();, A) g$ {, ^1 H- y" ]
- if (httpCode > 0) {1 u# g; o% R' R7 i2 h& N
- Serial.printf("[HTTP] code: %d\n", httpCode);0 N7 C Q3 L5 ^+ C, |3 V( H0 S, x0 n
- if (httpCode == HTTP_CODE_OK) {
* ~6 Y( A9 f5 C; i: O6 ]2 c; ~4 R - String payload = http.getString();
: W+ M5 P+ w+ p0 P% M - Serial.println(payload);
. d8 y# U7 V: T( a1 N) t - Serial.print("\r\n");# M/ u0 h M! E6 D" D3 r/ Y* D
- return payload;
- ]" [8 v4 u/ E* G4 u/ P - }3 I& `1 z% J* K
- } else {
0 k3 _! O9 c3 Q - Serial.printf("[HTTP] GET... failed, error: %s\n",5 o) a) g8 w* t) T( g( t
- http.errorToString(httpCode).c_str());
$ D$ ^/ u0 @! i# ` - }: K9 m/ q( n, O# u' L' V/ y
- http.end();5 d. p! c3 L K$ V: P3 V
- return "";
9 z F8 P2 ~" t- o& ?. t - }
: F- d$ N; k6 L9 W; O6 i2 @ - }
( X( C: {4 C6 h4 x+ G - void mainAction() {: P# c. M8 | |4 m6 ?) E s7 I
- // 发送请求8 V3 ]4 q |' |5 @
- doGet("http://google.cn");" U2 p# A9 Q8 R( O- r; h& e" |
- }
! ~" K5 {9 ]- k% j+ j8 f
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