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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)
$ C# l1 J: s4 m, N& Y6 a1 }6 Y- #include <ESP8266HTTPClient.h>
" f- r! Y& B& R7 r; a - #include <ESP8266WiFi.h>+ q& @% U2 B1 J% y- j8 P; p' q/ z
- #include <ESP8266WiFiMulti.h>
! Z+ M% C3 o- h; f - #include <ESP8266WebServer.h>
& P: h) u8 |$ ~ - #include <arduino.h>* |+ F# I+ Y/ y1 j7 i! |
- ESP8266WiFiMulti WiFiMulti;7 A4 d. F+ N/ o+ a2 }: s2 s# V
- ESP8266WebServer server(80);
- v( v& @3 t& b Z: y9 E g - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ \& z1 q. _: [+ L# \5 }& g3 Q- \ - ADC_MODE(ADC_VCC);
# v, b3 ?! B) K) i, B0 _8 G; [4 \ - void setup() {
6 h1 w( Y6 f2 c: V% a - Serial.begin(115200);
- Z9 R- f9 s( ] - Serial.print("\r\n\n");9 y7 O1 u- b. G
- pinMode(2,OUTPUT);2 z7 j$ `. u3 T0 t0 v& ~" ]
- // WIFI
2 G$ @/ B- X! l) m2 [& z0 g# @ - WiFi.mode(WIFI_STA);
2 P3 m/ p; A% ]% S9 m" [ - WiFi.hostname("Sparkle");
% ^% u8 E0 J5 t) n+ y$ q& ^ - WiFiMulti.addAP("wifi ssid", "wifi password");
- {/ Z) v/ R3 z" ~ - int tryNum = 15;: @5 E2 E4 T. A! D
- Serial.print("Connect WiFi"); N8 c4 s* N$ v
- while (WiFiMulti.run() != WL_CONNECTED) {' Q! B7 ]9 L/ W8 x
- digitalWrite(2,0);
, f; ~8 }, g2 D - delay(200);
' p+ f: O6 f' \" U6 }: f - digitalWrite(2,1);
! i: }2 P" y2 J0 ]* i; G- Y - delay(300);
; Z% a H4 W2 k3 u6 c5 e5 c - Serial.print(".");2 x: B5 M! c% h
- tryNum--;
9 z% l: K( m+ Y: I9 N' d7 m - if (tryNum == 0) {. I) h1 Y( z3 @2 a# J
- // 1min
, ?. n( f5 j8 _5 Q - // ESP.deepSleep(60e6);
+ p$ A. ~ y. O d - ESP.deepSleep(0);+ i7 z5 w% w* G9 e% F |6 |* {
- }
! w2 s3 M: @; \5 t$ P- A' m - }- t* H" m$ o2 }8 Y; O( ^# G
- Serial.print("\r\n");, h) @* f" W t8 Y
- digitalWrite(2,1);
9 o( a; p) w: o: ]8 ^% r - Serial.print("IP address : ");
* F+ Q9 r1 y* q6 J/ C- [( j( n, } - Serial.println(WiFi.localIP());
0 X0 V7 M" D/ i5 q+ \3 X - server.on("/", HTTP_GET, [](){/ W W0 g( g/ N+ h2 t
- server.sendHeader("Connection", "close");
, A9 B4 U' h) [$ L - server.send(200, "text/html", serverIndex);% S- _: S! L; e- z1 [; x, e
- });( a. ^' s7 ~, M- y1 D' r$ w9 b
- server.on("/update", HTTP_POST, [](){! g% h2 ^% C2 \! H
- server.sendHeader("Connection", "close");
' T4 i1 y' L0 e8 n* W9 `$ k: l7 p2 G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: x ~/ G% p4 l; ]6 E - ESP.restart();
; T; v3 b f0 v n1 N6 v. s! X - },[](){$ n$ m9 L' H: ~
- HTTPUpload& upload = server.upload();( a+ j2 c$ M1 N0 E
- if(upload.status == UPLOAD_FILE_START){, g2 v. z& G8 l% J* A8 W; X
- Serial.setDebugOutput(true);
. ]5 q7 j. \0 i2 d8 P9 }$ i& i - Serial.printf("Update: %s\n", upload.filename.c_str());
& y1 a2 Q8 N2 c$ d" j, D1 t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' B1 ~( [) J2 V/ Y) q
- if(!Update.begin(maxSketchSpace)){
, B7 R/ [" B; p - Update.printError(Serial);1 K& q' H! F, t# N( w# ^
- }- I8 G, a+ X7 T! @8 ^/ s' ?9 m, S
- } else if(upload.status == UPLOAD_FILE_WRITE){# P3 Y6 u$ W: B+ O% x2 f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 h4 S1 J* u1 t - Update.printError(Serial);$ Q) l6 e8 ?) @1 O2 Y
- }6 |. z0 o( S( f* z0 U" o
- } else if(upload.status == UPLOAD_FILE_END){
# l5 Q8 F! h% }3 j7 J8 p \! O - if(Update.end(true)){+ w4 N( P8 O* u
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ ]8 d& Q. K! y1 r9 x+ Q - } else {4 {% c$ ? L% p' K( ^+ @- P
- Update.printError(Serial);
; }' S5 H; Y7 g/ A5 |+ }* D n: x( x - }
3 {7 o" d& _* | U2 S - Serial.setDebugOutput(false);: M' D# q7 j, z2 N) r6 P
- }
* i" [: X+ o' R1 f( @, r - yield();& ^, y4 a3 f+ W) h
- });
: G! L! \# k+ t. L: N, ? -
" t* l3 j2 c2 H9 O! Y/ ?9 p, ~0 _ - digitalWrite(2,0);) {. ~' c3 I3 s9 U( ?/ X
- mainAction();
1 A' g! Q* ~4 S/ Z, h6 f+ H - if (digitalRead(0)){" T4 w+ u* s4 `
- ESP.deepSleep(0);4 V, _0 q7 ^& P8 C& Y
- } else {5 @# c- |7 y' Z- R E' _
- server.begin();
X! g0 b% O& I( S* x - }$ T! G* t1 R7 G, A6 \
- }
3 f: s# D1 J% T8 o' a4 ] - void loop() {
0 _1 `9 A! f8 e6 X1 O - server.handleClient();
. C/ |: U# \2 a; W+ ?9 E+ z) n4 B - delay(1);
# Y) v" J' |; l0 {' P: @ - }' N! k7 p, H$ l1 T9 x
- String doGet(String url){# F* S5 ]" Z2 @; j3 p d: R, f& V* g
- if ((WiFiMulti.run() == WL_CONNECTED)) { Y- E3 i2 m5 y3 i" c
- HTTPClient http;
% Z' ?* d& ?1 `* `7 X: l$ X - Serial.println("[HTTP] begin...");' u' u* i; A! S7 Q+ ]
- if (url.startsWith("https")) {
( q4 v, O( Z2 ~0 N& ~1 ? - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ O b! S+ h* t5 D6 i$ Q& P2 @. v# p
- } else {; {6 W% n0 {$ ~" m" Y
- http.begin(url);5 W6 o) ?& f# T0 D6 m! G- p2 [
- }
# X* K5 D. ?1 H- c - Serial.println("[HTTP] GET...");/ C: h2 X7 w- W+ i* G
- int httpCode = http.GET();1 b$ a+ m2 e& W4 v% i3 b7 E
- if (httpCode > 0) {/ G2 X2 O4 p: b- F2 [
- Serial.printf("[HTTP] code: %d\n", httpCode);
; b) Z5 ]" e; D/ `5 C - if (httpCode == HTTP_CODE_OK) {
) u3 f" m f0 T! s' w - String payload = http.getString();
1 C* C, K+ {0 o - Serial.println(payload);/ j/ |, ~) G6 u, D% o
- Serial.print("\r\n");
3 M7 A* e7 q) L) t - return payload;
. p0 b4 w6 B1 L/ [8 q; P# j2 C - }
! O. l! ^7 f# H/ J ?) h - } else {
4 W9 @* A" f" O+ q - Serial.printf("[HTTP] GET... failed, error: %s\n",
* Y D8 {, P7 _5 { - http.errorToString(httpCode).c_str());/ B) \6 c: D$ i- w/ S+ h. ]9 B
- }3 @7 S8 u$ @3 z( R" F8 Y2 C
- http.end();
( y- C& r! \4 I, x - return "";
6 L$ O# v: E9 ?* {% ]2 @ - }
# J- z: w- k. N- N' G& W - }! X9 p, i5 ]3 Q- u9 v
- void mainAction() {
7 b2 ~% m! P7 G. {' |) k - // 发送请求( _- C! f1 p; b, p& e
- doGet("http://google.cn");' Q/ @( k2 A' L( E9 s" b3 R
- }8 L7 k, B) S, g+ w- }% P
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